1
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Tomoda M, Kubota A, Matsuda O, Sugawara Y, Wright OB. Time-domain Brillouin imaging of sound velocity and refractive index using automated angle scanning. PHOTOACOUSTICS 2023; 31:100486. [PMID: 37113270 PMCID: PMC10126909 DOI: 10.1016/j.pacs.2023.100486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 03/23/2023] [Accepted: 03/31/2023] [Indexed: 06/19/2023]
Abstract
We present a picosecond optoacoustic technique for mapping both the longitudinal sound velocity v and the refractive index n in solids by automated measurement at multiple probe incidence angles in time-domain Brillouin scattering. Using a fused silica sample with a deposited titanium film as an optoacoustic transducer, we map v and n in the depth direction. Applications include the imaging of sound velocity and refractive index distributions in three dimensions in inhomogeneous samples such as biological cells.
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Affiliation(s)
- Motonobu Tomoda
- Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Akihisa Kubota
- Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Osamu Matsuda
- Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Yoshihiro Sugawara
- Analysis Technology Center, FUJIFILM Corporation, Kanagawa 250-0193, Japan
| | - Oliver B. Wright
- Hokkaido University, Sapporo 060-0808, Japan
- Graduate School of Engineering, Osaka University, Yamadaoka 2-1, Suita, Osaka 565-0871, Japan
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2
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Uthe B, Sader JE, Pelton M. Optical measurement of the picosecond fluid mechanics in simple liquids generated by vibrating nanoparticles: a review. REPORTS ON PROGRESS IN PHYSICS. PHYSICAL SOCIETY (GREAT BRITAIN) 2022; 85:103001. [PMID: 36049471 DOI: 10.1088/1361-6633/ac8e82] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 09/01/2022] [Indexed: 06/15/2023]
Abstract
Standard continuum assumptions commonly used to describe the fluid mechanics of simple liquids have the potential to break down when considering flows at the nanometer scale. Two common assumptions for simple molecular liquids are that (1) they exhibit a Newtonian response, where the viscosity uniquely specifies the linear relationship between the stress and strain rate, and (2) the liquid moves in tandem with the solid at any solid-liquid interface, known as the no-slip condition. However, even simple molecular liquids can exhibit a non-Newtonian, viscoelastic response at the picosecond time scales that are characteristic of the motion of many nanoscale objects; this viscoelasticity arises because these time scales can be comparable to those of molecular relaxation in the liquid. In addition, even liquids that wet solid surfaces can exhibit nanometer-scale slip at those surfaces. It has recently become possible to interrogate the viscoelastic response of simple liquids and associated nanoscale slip using optical measurements of the mechanical vibrations of metal nanoparticles. Plasmon resonances in metal nanoparticles provide strong optical signals that can be accessed by several spectroscopies, most notably ultrafast transient-absorption spectroscopy. These spectroscopies have been used to measure the frequency and damping rate of acoustic oscillations in the nanoparticles, providing quantitative information about mechanical coupling and exchange of mechanical energy between the solid particle and its surrounding liquid. This information, in turn, has been used to elucidate the rheology of viscoelastic simple liquids at the nanoscale in terms of their constitutive relations, taking into account separate viscoelastic responses for both shear and compressible flows. The nanoparticle vibrations have also been used to provide quantitative measurements of slip lengths on the single-nanometer scale. Viscoelasticity has been shown to amplify nanoscale slip, illustrating the interplay between different aspects of the unconventional fluid dynamics of simple liquids at nanometer length scales and picosecond time scales.
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Affiliation(s)
- Brian Uthe
- Department of Physics, UMBC (University of Maryland, Baltimore County), Baltimore, MD 21250, United States of America
| | - John E Sader
- School of Mathematics and Statistics, The University of Melbourne, Victoria 3010, Australia
| | - Matthew Pelton
- Department of Physics, UMBC (University of Maryland, Baltimore County), Baltimore, MD 21250, United States of America
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3
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Vasin MG. Glass transition as a topological phase transition. Phys Rev E 2022; 106:044124. [PMID: 36397462 DOI: 10.1103/physreve.106.044124] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 09/21/2022] [Indexed: 06/16/2023]
Abstract
The glass transition is described as a phase transition in the system of topologically protected excitations in matter structure. The critical behavior of the system is considered in both static and dynamic cases. It is shown that the proposed model reproduces most of the characteristic thermodynamic and kinetic properties of glass transition: the Vogel-Fulcher-Tammann law, the behavior of susceptibility and nonlinear susceptibilities, and heat capacity behavior as well as the appearance of a boson peak in the frequency dependence of the dynamic structure factor near the glass transition temperature.
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Affiliation(s)
- M G Vasin
- Vereshchagin Institute of High Pressure Physics, Russian Academy of Sciences, 108840 Moscow, Russia
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4
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Chaban I, Deska R, Privault G, Trzop E, Lorenc M, Kooi SE, Nelson KA, Samoc M, Matczyszyn K, Pezeril T. Nonlinear Optical Absorption in Nanoscale Films Revealed through Ultrafast Acoustics. NANO LETTERS 2022; 22:4362-4367. [PMID: 35587204 DOI: 10.1021/acs.nanolett.2c00771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Herein we describe a novel spinning pump-probe photoacoustic technique developed to study nonlinear absorption in thin films. As a test case, an organic polycrystalline thin film of quinacridone, a well-known pigment, with a thickness in the tens of nanometers range, is excited by a femtosecond laser pulse which generates a time-domain Brillouin scattering signal. This signal is directly related to the strain wave launched from the film into the substrate and can be used to quantitatively extract the nonlinear optical absorption properties of the film itself. Quinacridone exhibits both quadratic and cubic laser fluence dependence regimes which we show to correspond to two- and three-photon absorption processes. This technique can be broadly applied to materials that are difficult or impossible to characterize with conventional transmittance-based measurements including materials at the nanoscale, prone to laser damage, with very weak nonlinear properties, opaque, or highly scattering.
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Affiliation(s)
- Ievgeniia Chaban
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Radoslaw Deska
- Advanced Materials Engineering and Modelling Group, Wroclaw University of Science and Technology, PL-50370 Wroclaw, Poland
| | - Gael Privault
- Institut de Physique de Rennes, UMR CNRS 6251, Université Rennes 1, 35042 Rennes Cedex, France
| | - Elzbieta Trzop
- Institut de Physique de Rennes, UMR CNRS 6251, Université Rennes 1, 35042 Rennes Cedex, France
| | - Maciej Lorenc
- Institut de Physique de Rennes, UMR CNRS 6251, Université Rennes 1, 35042 Rennes Cedex, France
| | - Steven E Kooi
- Institute for Soldier Nanotechnologies, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Keith A Nelson
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Marek Samoc
- Advanced Materials Engineering and Modelling Group, Wroclaw University of Science and Technology, PL-50370 Wroclaw, Poland
| | - Katarzyna Matczyszyn
- Advanced Materials Engineering and Modelling Group, Wroclaw University of Science and Technology, PL-50370 Wroclaw, Poland
| | - Thomas Pezeril
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Institut de Physique de Rennes, UMR CNRS 6251, Université Rennes 1, 35042 Rennes Cedex, France
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5
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Lifting restrictions on coherence loss when characterizing non-transparent hypersonic phononic crystals. Sci Rep 2021; 11:17174. [PMID: 34433886 PMCID: PMC8387379 DOI: 10.1038/s41598-021-96663-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 08/10/2021] [Indexed: 11/09/2022] Open
Abstract
Hypersonic phononic bandgap structures confine acoustic vibrations whose wavelength is commensurate with that of light, and have been studied using either time- or frequency-domain optical spectroscopy. Pulsed pump-probe lasers are the preferred instruments for characterizing periodic multilayer stacks from common vacuum deposition techniques, but the detection mechanism requires the injected sound wave to maintain coherence during propagation. Beyond acoustic Bragg mirrors, frequency-domain studies using a tandem Fabry–Perot interferometer (TFPI) find dispersions of two- and three-dimensional phononic crystals (PnCs) even for highly disordered samples, but with the caveat that PnCs must be transparent. Here, we demonstrate a hybrid technique for overcoming the limitations that time- and frequency-domain approaches exhibit separately. Accordingly, we inject coherent phonons into a non-transparent PnC using a pulsed laser and acquire the acoustic transmission spectrum on a TFPI, where pumped appear alongside spontaneously excited (i.e. incoherent) phonons. Choosing a metallic Bragg mirror for illustration, we determine the bandgap and compare with conventional time-domain spectroscopy, finding resolution of the hybrid approach to match that of a state-of-the-art asynchronous optical sampling setup. Thus, the hybrid pump–probe technique retains key performance features of the established one and going forward will likely be preferred for disordered samples.
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6
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Yu K, Yang Y, Wang J, Hartland GV, Wang GP. Nanoparticle-Fluid Interactions at Ultrahigh Acoustic Vibration Frequencies Studied by Femtosecond Time-Resolved Microscopy. ACS NANO 2021; 15:1833-1840. [PMID: 33448792 DOI: 10.1021/acsnano.0c09840] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Liquid viscous and viscoelastic properties are very important parameters in determining rheological phenomena. Mechanical resonators with extremely high vibrational frequencies interacting with simple liquids present a wide range of applications from mass sensing to biomechanics. However, a lack of understanding of fluid viscoelasticity greatly hinders the utilization of mechanical resonators. In this paper, the high frequency acoustic vibrations of Au nanoplates with large quality factors were used to probe fluid properties (water, glycerol, and their mixtures) through time-resolved pump-probe microscopy experiments. For water, viscous damping was clearly observed, where an inviscid effect was only detected previously. Adding glycerol to the water increases the fluid viscosity and leads to a bulk viscoelastic response in the system. The experimental results are in excellent agreement with a continuum mechanics model for the damping of nanoplate breathing modes in liquids, confirming the experimental observation of viscoelastic effects. In addition to the breathing modes of the nanoplates, Brillouin oscillations are observed in the experiments. Analysis of the frequency of the Brillouin oscillations also shows the presence of viscoelastic effects in the high-viscosity solvents. The detection and analysis of viscous damping in liquids is important not only for understanding the energy dissipation mechanisms and providing the mechanical relaxation times of the liquids but also for developing applications of nanomechanical resonators for fluid environments.
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Affiliation(s)
- Kuai Yu
- Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, China
| | - Yang Yang
- Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, China
| | - Junzhong Wang
- Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, China
| | - Gregory V Hartland
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Guo Ping Wang
- Institute of Microscale Optoelectronics, Shenzhen University, Shenzhen 518060, China
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7
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Chaban I, Klieber C, Busselez R, Nelson KA, Pezeril T. Crystalline-like ordering of 8CB liquid crystals revealed by time-domain Brillouin scattering. J Chem Phys 2020; 152:014202. [PMID: 31914732 DOI: 10.1063/1.5135982] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
We demonstrate that time-domain Brillouin scattering (TDBS), a technique based on an ultrafast pump-probe approach, is sensitive to phase transitions and apply it to the study of structural changes in 8CB liquid crystals at different temperatures across the isotropic, nematic, smectic, and crystalline phases. We investigate the viscoelastic properties of 8CB squeezed in a narrow gap, from the nanometer to submicrometer thickness range, and conclude on the long-range molecular structuring of the smectic phase. These TDBS results reveal that confinement effects favor structuring of the smectic phase into a crystallinelike phase that can be observed at wide distances far beyond the molecular dimensions.
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Affiliation(s)
- Ievgeniia Chaban
- Institut Molécules et Matériaux du Mans, UMR CNRS 6283, Le Mans Université, 72085 Le Mans, France
| | - Christoph Klieber
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Rémi Busselez
- Institut Molécules et Matériaux du Mans, UMR CNRS 6283, Le Mans Université, 72085 Le Mans, France
| | - Keith A Nelson
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Thomas Pezeril
- Institut Molécules et Matériaux du Mans, UMR CNRS 6283, Le Mans Université, 72085 Le Mans, France
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8
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Roed LA, Hecksher T, Dyre JC, Niss K. Generalized single-parameter aging tests and their application to glycerol. J Chem Phys 2019; 150:044501. [DOI: 10.1063/1.5066387] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Lisa Anita Roed
- Glass and Time, IMFUFA, Department of Science and Environment, Roskilde University, P.O. Box 260, DK-4000 Roskilde, Denmark
| | - Tina Hecksher
- Glass and Time, IMFUFA, Department of Science and Environment, Roskilde University, P.O. Box 260, DK-4000 Roskilde, Denmark
| | - Jeppe C. Dyre
- Glass and Time, IMFUFA, Department of Science and Environment, Roskilde University, P.O. Box 260, DK-4000 Roskilde, Denmark
| | - Kristine Niss
- Glass and Time, IMFUFA, Department of Science and Environment, Roskilde University, P.O. Box 260, DK-4000 Roskilde, Denmark
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9
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Samant P, Burt TA, Zhao ZJ, Xiang L. Nanoscale photoacoustic tomography for label-free super-resolution imaging: simulation study. JOURNAL OF BIOMEDICAL OPTICS 2018; 23:1-10. [PMID: 30411552 DOI: 10.1117/1.jbo.23.11.116501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Accepted: 10/12/2018] [Indexed: 06/08/2023]
Abstract
Resolutions higher than the optical diffraction limit are often desired in the context of cellular imaging and the study of disease progression at the cellular level. However, three-dimensional super-resolution imaging without reliance on exogenous contrast agents has so far not been achieved. We present nanoscale photoacoustic tomography (nPAT), an imaging modality based on the photoacoustic effect. nPAT can achieve a dramatic improvement in the axial resolution of the photoacoustic imaging. We derive the theoretical resolution and sensitivity of nPAT and demonstrate that nPAT can achieve a maximum axial resolution of 9.2 nm. We also demonstrate that nPAT can theoretically detect smaller numbers of molecules (∼273) than conventional photoacoustic microscopy due to its ability to detect acoustic signals very close to the photoacoustic source. We simulate nPAT imaging of malaria-infected red blood cells (RBCs) using digital phantoms generated from real biological samples, showing nPAT imaging of the RBC at different stages of infection. These simulations show the potential of nPAT to nondestructively image RBCs at the nanometer resolutions for in vivo samples without the use of exogenous contrast agents. Simulations of nPAT-enabled functional imaging show that nPAT can yield insight into malarial metabolism and biocrystallization processes. We believe that the experimental realization of nPAT has important applications in biomedicine.
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Affiliation(s)
- Pratik Samant
- University of Oklahoma, Stephenson School of Biomedical Engineering, Norman, Oklahoma, United States
| | - Timothy A Burt
- University of Oklahoma, Homer L. Dodge Department of Physics and Astronomy, Norman, Oklahoma, United States
| | - Zhizhuang Joe Zhao
- University of Oklahoma Health Sciences Center, Department of Pathology, Oklahoma City, Oklahoma, United States
| | - Liangzhong Xiang
- University of Oklahoma, School of Electric and Computer Engineering, Norman, Oklahoma, United States
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10
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Lemke HT, Breiby DW, Ejdrup T, Hammershøj P, Cammarata M, Khakhulin D, Rusteika N, Adachi SI, Koshihara S, Kuhlman TS, Mariager SO, Nielsen TN, Wulff M, Sølling TI, Harrit N, Feidenhans’l R, Nielsen MM. Tuning and Tracking of Coherent Shear Waves in Molecular Films. ACS OMEGA 2018; 3:9929-9933. [PMID: 31459121 PMCID: PMC6645282 DOI: 10.1021/acsomega.8b01400] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Accepted: 08/13/2018] [Indexed: 06/10/2023]
Abstract
We have determined the time-dependent displacement fields in molecular sub-micrometer thin films as response to femtosecond and picosecond laser pulse heating by time-resolved X-ray diffraction. This method allows a direct absolute determination of the molecular displacements induced by electron-phonon interactions, which are crucial for, for example, charge transport in organic electronic devices. We demonstrate that two different modes of coherent shear motion can be photoexcited in a thin film of organic molecules by careful tuning of the laser penetration depth relative to the thickness of the film. The measured response of the organic film to impulse heating is explained by a thermoelastic model and reveals the spatially resolved displacement in the film. Thereby, information about the profile of the energy deposition in the film as well as about the mechanical interaction with the substrate material is obtained.
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Affiliation(s)
- Henrik Till Lemke
- Nano-Science Center and Department of
Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen, Denmark
| | - Dag Werner Breiby
- Deparment of Physics, Norwegian
University of Science and Technology, Højskoleringen 5, 7491 Trondheim, Norway
| | - Tine Ejdrup
- Nano-Science Center and Department of
Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen, Denmark
| | - Peter Hammershøj
- Nano-Science Center and Department of
Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen, Denmark
| | - Marco Cammarata
- Department of Chemistry, University of
Copenhagen, Universitetsparken
5, 2100 Copenhagen, Denmark
| | - Dmitry Khakhulin
- Department of Chemistry, University of
Copenhagen, Universitetsparken
5, 2100 Copenhagen, Denmark
| | - Nerijus Rusteika
- Nano-Science Center and Department of
Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen, Denmark
| | - Shin-Ichi Adachi
- Tokyo Institute of Technology, 2-12-1-H61 Oh-okayama, Meguro-ku, Tokyo 152-8551, Japan
| | - Shinya Koshihara
- Tokyo Institute of Technology, 2-12-1-H61 Oh-okayama, Meguro-ku, Tokyo 152-8551, Japan
| | - Thomas Scheby Kuhlman
- Nano-Science Center and Department of
Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen, Denmark
| | - Simon Oddsson Mariager
- Nano-Science Center and Department of
Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen, Denmark
| | - Thomas Nørskov Nielsen
- Nano-Science Center and Department of
Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen, Denmark
| | - Michael Wulff
- ESRF—The European Synchrotron, CS40220, 38043 Grenoble Cedex 9, France
| | - Theis Ivan Sølling
- Nano-Science Center and Department of
Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen, Denmark
| | - Niels Harrit
- Department of Chemistry, University of
Copenhagen, Universitetsparken
5, 2100 Copenhagen, Denmark
| | - Robert Feidenhans’l
- Nano-Science Center and Department of
Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen, Denmark
| | - Martin Meedom Nielsen
- Department of Physics, Technical University
of Denmark, Fysikvej
307, 2800 Kgs. Lyngby, Denmark
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11
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Connacher W, Zhang N, Huang A, Mei J, Zhang S, Gopesh T, Friend J. Micro/nano acoustofluidics: materials, phenomena, design, devices, and applications. LAB ON A CHIP 2018; 18:1952-1996. [PMID: 29922774 DOI: 10.1039/c8lc00112j] [Citation(s) in RCA: 119] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Acoustic actuation of fluids at small scales may finally enable a comprehensive lab-on-a-chip revolution in microfluidics, overcoming long-standing difficulties in fluid and particle manipulation on-chip. In this comprehensive review, we examine the fundamentals of piezoelectricity, piezoelectric materials, and transducers; revisit the basics of acoustofluidics; and give the reader a detailed look at recent technological advances and current scientific discussions in the discipline. Recent achievements are placed in the context of classic reports for the actuation of fluid and particles via acoustic waves, both within sessile drops and closed channels. Other aspects of micro/nano acoustofluidics are examined: atomization, translation, mixing, jetting, and particle manipulation in the context of sessile drops and fluid mixing and pumping, particle manipulation, and formation of droplets in the context of closed channels, plus the most recent results at the nanoscale. These achievements will enable applications across the disciplines of chemistry, biology, medicine, energy, manufacturing, and we suspect a number of others yet unimagined. Basic design concepts and illustrative applications are highlighted in each section, with an emphasis on lab-on-a-chip applications.
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Affiliation(s)
- William Connacher
- Medically Advanced Devices Laboratory, Center for Medical Devices and Instrumentation, Department of Mechanical and Aerospace Engineering, University of California San Diego, La Jolla, CA 92093-0411, USA.
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12
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Jensen MH, Gainaru C, Alba-Simionesco C, Hecksher T, Niss K. Slow rheological mode in glycerol and glycerol–water mixtures. Phys Chem Chem Phys 2018; 20:1716-1723. [DOI: 10.1039/c7cp06482a] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Glycerol–water mixtures were studied at molar concentrations ranging from xgly = 1 (neat glycerol) to xgly = 0.3 using shear mechanical spectroscopy.
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Affiliation(s)
- M. H. Jensen
- Glass & Time, IMFUFA, Department of Science and Environment, Roskilde University
- DK-4000 Roskilde
- Denmark
- Laboratoire Léon Brillouin, CNRS CEA-UMR 12, CEA Saclay
- 91191 Gif-sur-Yvette Cedex
| | - C. Gainaru
- Fakultät Physik, Technische Universität Dortmund
- 44221 Dortmund
- Germany
| | - C. Alba-Simionesco
- Laboratoire Léon Brillouin, CNRS CEA-UMR 12, CEA Saclay
- 91191 Gif-sur-Yvette Cedex
- France
| | - T. Hecksher
- Glass & Time, IMFUFA, Department of Science and Environment, Roskilde University
- DK-4000 Roskilde
- Denmark
| | - K. Niss
- Glass & Time, IMFUFA, Department of Science and Environment, Roskilde University
- DK-4000 Roskilde
- Denmark
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13
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Chaban I, Shin HD, Klieber C, Busselez R, Gusev VE, Nelson KA, Pezeril T. Time-domain Brillouin scattering for the determination of laser-induced temperature gradients in liquids. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2017; 88:074904. [PMID: 28764524 DOI: 10.1063/1.4993132] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
We present an optical technique based on ultrafast photoacoustics to determine the local temperature distribution profile in liquid samples in contact with a laser heated optical transducer. This ultrafast pump-probe experiment uses time-domain Brillouin scattering (TDBS) to locally determine the light scattering frequency shift. As the temperature influences the Brillouin scattering frequency, the TDBS signal probes the local laser-induced temperature distribution in the liquid. We demonstrate the relevance and the sensitivity of this technique for the measurement of the absolute laser-induced temperature gradient of a glass forming liquid prototype, glycerol, at different laser pump powers-i.e., different steady state background temperatures. Complementarily, our experiments illustrate how this TDBS technique can be applied to measure thermal diffusion in complex multilayer systems in contact with a surrounding liquid.
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Affiliation(s)
- Ievgeniia Chaban
- Institut Molécules et Matériaux du Mans, UMR CNRS 6283, Université du Maine, 72085 Le Mans, France
| | - Hyun D Shin
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Christoph Klieber
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Rémi Busselez
- Institut Molécules et Matériaux du Mans, UMR CNRS 6283, Université du Maine, 72085 Le Mans, France
| | - Vitalyi E Gusev
- Laboratoire d'Acoustique de l'Université du Maine, UMR CNRS 6613, Université du Maine, 72085 Le Mans, France
| | - Keith A Nelson
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Thomas Pezeril
- Institut Molécules et Matériaux du Mans, UMR CNRS 6283, Université du Maine, 72085 Le Mans, France
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14
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Lacevic NM, Sader JE. Viscoelasticity of glycerol at ultra-high frequencies investigated via molecular dynamics simulations. J Chem Phys 2016; 144:054502. [PMID: 26851926 DOI: 10.1063/1.4940146] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
We present a calculation of the shear and longitudinal moduli of glycerol in the gigahertz frequency regime and temperature range between 273 K and 323 K using classical molecular dynamics simulations. The full frequency spectra of shear and longitudinal moduli of glycerol between 0.5 GHz and 100 GHz at room temperature are computed, which was not previously available from experiments or simulations. We also demonstrate that the temperature dependence of the real parts of the shear and longitudinal moduli agrees well with available experimental counterparts obtained via time-domain Brillouin scattering. This work provides new insights into the response of molecular liquids to ultra-high frequency excitation and opens a new pathway for studying simple liquids at high frequencies and strain rates.
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Affiliation(s)
- Naida M Lacevic
- School of Mathematics and Statistics, The University of Melbourne, Victoria 3010, Australia
| | - John E Sader
- School of Mathematics and Statistics, The University of Melbourne, Victoria 3010, Australia
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15
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Busselez R, Pezeril T, Gusev VE. Structural heterogeneities at the origin of acoustic and transport anomalies in glycerol glass-former. J Chem Phys 2015; 140:234505. [PMID: 24952550 DOI: 10.1063/1.4883504] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
By means of large scale molecular dynamics simulations, we explore mesoscopic properties of prototypical glycerol glass-former above and below the glass transition. The model used, in excellent agreement with various experimental techniques, permits to carefully study the structure and the vibrational dynamics. We find that a medium range order is present in glycerol glass-former and arises from hydrogen bond network extension. The characteristic size of the structural heterogeneities is related to the anomalous properties of acoustic vibrations (Rayleigh scattering, "mode softening," and Boson Peak) in the glassy state. Finally the characteristic size of these heterogeneities, nearly constant in temperature, is also connected to the cross-over between structural relaxation and diffusion in liquid glycerol.
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Affiliation(s)
- Rémi Busselez
- Institut des Molécules et Matériaux du Mans UMR-CNRS 6283, Université du Maine, Le Mans, France
| | - Thomas Pezeril
- Institut des Molécules et Matériaux du Mans UMR-CNRS 6283, Université du Maine, Le Mans, France
| | - Vitalyi E Gusev
- Laboratoire d'Acoustique de l'Université du Maine, UMR-CNRS 6613 Université du Maine, Le Mans, France
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16
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Revealing sub-μm and μm-scale textures in H2O ice at megabar pressures by time-domain Brillouin scattering. Sci Rep 2015; 5:9352. [PMID: 25790808 PMCID: PMC4366861 DOI: 10.1038/srep09352] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2014] [Accepted: 02/26/2015] [Indexed: 11/27/2022] Open
Abstract
The time-domain Brillouin scattering technique, also known as picosecond ultrasonic interferometry, allows monitoring of the propagation of coherent acoustic pulses, having lengths ranging from nanometres to fractions of a micrometre, in samples with dimension of less than a micrometre to tens of micrometres. In this study, we applied this technique to depth-profiling of a polycrystalline aggregate of ice compressed in a diamond anvil cell to megabar pressures. The method allowed examination of the characteristic dimensions of ice texturing in the direction normal to the diamond anvil surfaces with sub-micrometre spatial resolution via time-resolved measurements of the propagation velocity of the acoustic pulses travelling in the compressed sample. The achieved imaging of ice in depth and in one of the lateral directions indicates the feasibility of three-dimensional imaging and quantitative characterisation of the acoustical, optical and acousto-optical properties of transparent polycrystalline aggregates in a diamond anvil cell with tens of nanometres in-depth resolution and a lateral spatial resolution controlled by pump laser pulses focusing, which could approach hundreds of nanometres.
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17
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Klieber C, Gusev VE, Pezeril T, Nelson KA. Nonlinear acoustics at GHz frequencies in a viscoelastic fragile glass former. PHYSICAL REVIEW LETTERS 2015; 114:065701. [PMID: 25723228 DOI: 10.1103/physrevlett.114.065701] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Indexed: 05/22/2023]
Abstract
Using a picosecond pump-probe ultrasonic technique, we study the propagation of high-amplitude, laser-generated longitudinal coherent acoustic pulses in the viscoelastic fragile glass former DC704. We observe an increase of almost 10% in acoustic pulse propagation speed at the highest optical pump fluence which is a result of the supersonic nature of nonlinear propagation in the viscous medium. From our measurement, we deduce the nonlinear acoustic parameter of the glass former in the gigahertz frequency range across the glass transition temperature.
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Affiliation(s)
- Christoph Klieber
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA and Institut Molécules et Matériaux du Mans, UMR-CNRS 6283, Université du Maine, 72085 Le Mans, France
| | - Vitalyi E Gusev
- Institut Molécules et Matériaux du Mans, UMR-CNRS 6283, Université du Maine, 72085 Le Mans, France and Laboratoire d'Acoustique de l'Université du Maine, UMR-CNRS 6613, Université du Maine, 72085 Le Mans, France
| | - Thomas Pezeril
- Institut Molécules et Matériaux du Mans, UMR-CNRS 6283, Université du Maine, 72085 Le Mans, France
| | - Keith A Nelson
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
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18
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Ruello P, Gusev VE. Physical mechanisms of coherent acoustic phonons generation by ultrafast laser action. ULTRASONICS 2015; 56:21-35. [PMID: 25038958 DOI: 10.1016/j.ultras.2014.06.004] [Citation(s) in RCA: 119] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2013] [Revised: 05/26/2014] [Accepted: 06/03/2014] [Indexed: 05/06/2023]
Abstract
In this review we address the microscopic mechanisms that are involved in the photogeneration processes of GHz-THz coherent acoustic phonons (CAP) induced by an ultrafast laser pulse. Understanding and describing the underlying physics is necessary indeed for improving the future sources of coherent acoustic phonons useful for the non-destructive testing optoacoustic techniques. Getting more physical insights on these processes also opens new perspectives for the emerging field of the opto-mechanics where lattice motions (surface and/or interfaces ultrafast displacements, nanostructures resonances) are controlled by light. We will then remind the basics of electron-phonon and photon-phonon couplings by discussing the deformation potential mechanism, the thermoelasticity, the inverse piezoelectric effect and the electrostriction in condensed matter. Metals, semiconductors and oxide materials will be discussed. The contribution of all these mechanisms in the photogeneration process of sound will be illustrated over several examples coming from the rich literature.
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Affiliation(s)
- Pascal Ruello
- Institut des Molécules et Matériaux du Mans, UMR CNRS 6283, Université du Maine, 72085 Le Mans, France.
| | - Vitalyi E Gusev
- Laboratoire d'Acoustique UMR CNRS 6613, Université du Maine, 72085 Le Mans, France
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19
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Dehoux T, Abi Ghanem M, Zouani OF, Ducousso M, Chigarev N, Rossignol C, Tsapis N, Durrieu MC, Audoin B. Probing single-cell mechanics with picosecond ultrasonics. ULTRASONICS 2015; 56:160-71. [PMID: 25172112 DOI: 10.1016/j.ultras.2014.07.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2014] [Revised: 07/10/2014] [Accepted: 07/15/2014] [Indexed: 05/23/2023]
Abstract
The mechanical properties of cells play a key role in several fundamental biological processes, such as migration, proliferation, differentiation and tissue morphogenesis. The complexity of the inner cell composition and the intricate meshwork formed by transmembrane cell-substrate interactions demands a non-invasive technique to probe cell mechanics and cell adhesion at a subcell scale. In this paper we review the use of laser-generated GHz acoustic waves--a technique called picosecond ultrasonics (PU)--to probe the mechanical properties of single cells. We first describe applications to vegetal cells and biomimetic systems. We show how these systems can be used as simple models to understand more complex animal cells. We then present an opto-acoustic bio-transducer designed for in vivo measurements in physiological conditions. We illustrate the use of this transducer through the simultaneous probing of the density and compressibility of Allium cepa cells. Finally, we demonstrate that this technique can quantify animal-cell adhesion on metallic surfaces by analyzing the acoustic pulses reflected off the cell-metal interface. This innovative approach allows investigating quantitatively cell mechanics without fluorescent labels or mechanical contact to the cell.
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Affiliation(s)
- Thomas Dehoux
- Univ. Bordeaux, I2M, UMR 5295, F-33400 Talence, France; CNRS, I2M, UMR 5295, F-33400 Talence, France
| | - Maroun Abi Ghanem
- Univ. Bordeaux, I2M, UMR 5295, F-33400 Talence, France; CNRS, I2M, UMR 5295, F-33400 Talence, France
| | - Omar F Zouani
- Univ. Bordeaux, CBMN, UMR CNRS 5248, F-33607 Pessac, France
| | - Mathieu Ducousso
- Univ. Bordeaux, I2M, UMR 5295, F-33400 Talence, France; CNRS, I2M, UMR 5295, F-33400 Talence, France
| | - Nikolay Chigarev
- Univ. Bordeaux, I2M, UMR 5295, F-33400 Talence, France; CNRS, I2M, UMR 5295, F-33400 Talence, France
| | - Clément Rossignol
- Univ. Bordeaux, I2M, UMR 5295, F-33400 Talence, France; CNRS, I2M, UMR 5295, F-33400 Talence, France
| | - Nicolas Tsapis
- Univ Paris-Sud, UMR CNRS 8612, Physicochimie-Pharmacotechnie-Biopharmacie, Faculté de Pharmacie, F-92296 Châtenay-Malabry, France
| | | | - Bertrand Audoin
- Univ. Bordeaux, I2M, UMR 5295, F-33400 Talence, France; CNRS, I2M, UMR 5295, F-33400 Talence, France.
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20
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Mante PA, Huang YR, Yang SC, Liu TM, Maznev AA, Sheu JK, Sun CK. THz acoustic phonon spectroscopy and nanoscopy by using piezoelectric semiconductor heterostructures. ULTRASONICS 2015; 56:52-65. [PMID: 25455189 DOI: 10.1016/j.ultras.2014.09.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2013] [Revised: 09/18/2014] [Accepted: 09/29/2014] [Indexed: 06/04/2023]
Abstract
Thanks to ultrafast acoustics, a better understanding of acoustic dynamics on a short time scale has been obtained and new characterization methods at the nanoscale have been developed. Among the materials that were studied during the development of ultrafast acoustics, nitride based heterostructures play a particular role due to their piezoelectric properties and the possibility to generate phonons with over-THz frequency and bandwidth. Here, we review some of the work performed using this type of structure, with a focus on THz phonon spectroscopy and nanoscopy. First, we present a brief description of the theory of coherent acoustic phonon generation by piezoelectric heterostructure. Then the first experimental observation of coherent acoustic phonon generated by the absorption of ultrashort light pulses in piezoelectric heterostructures is presented. From this starting point, we then present some methods developed to realize customizable phonon generation. Finally we review some more recent applications of these structures, including imaging with a nanometer resolution, broadband attenuation measurements with a frequency up to 1THz and phononic bandgap characterization.
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Affiliation(s)
- Pierre-Adrien Mante
- Department of Electrical Engineering and Graduate Institute of Photonics and Optoelectronics, National Taiwan University, Taipei 10617, Taiwan
| | - Yu-Ru Huang
- Department of Electrical Engineering and Graduate Institute of Photonics and Optoelectronics, National Taiwan University, Taipei 10617, Taiwan
| | - Szu-Chi Yang
- Department of Electrical Engineering and Graduate Institute of Photonics and Optoelectronics, National Taiwan University, Taipei 10617, Taiwan
| | - Tzu-Ming Liu
- Institute of Biomedical Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Alexei A Maznev
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Jinn-Kong Sheu
- Institute of Electro-Optical Science and Engineering and Advanced Optoelectronic Technology Center, National Cheng Kung University, Tainan 70101, Taiwan
| | - Chi-Kuang Sun
- Department of Electrical Engineering and Graduate Institute of Photonics and Optoelectronics, National Taiwan University, Taipei 10617, Taiwan; Molecular Imaging Center, National Taiwan University, Taipei 10617, Taiwan; Institute of Physics and Research Center for Applied Sciences, Academia Sinica, Taipei 115, Taiwan.
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21
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Brazhkin VV, Lyapin AG, Ryzhov VN, Trachenko K, Fomin YD, Tsiok EN. The Frenkel line and supercritical technologies. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B 2015. [DOI: 10.1134/s199079311408003x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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22
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Zouani OF, Dehoux T, Durrieu MC, Audoin B. Universality of the network-dynamics of the cell nucleus at high frequencies. SOFT MATTER 2014; 10:8737-43. [PMID: 25271957 DOI: 10.1039/c4sm00933a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
The interior of the cell nucleus is comparable to a solid network bathed in an interstitial fluid. From the extrapolation of low frequency data, it is expected that such network should dictate the response of the nucleus to mechanical stress at high frequencies, described by unique elastic moduli. However, none of the existing techniques that can probe the mechanical properties of cells can exceed the kHz range, and the mechanics of the nuclear network remain poorly understood. We use laser-generated acoustic waves to probe remotely the stiffness and viscosity of nuclei in single cells in the previously unexplored GHz range with a ∼100 nm axial resolution. The probing of cells at contrasted differentiation stages, ranging from stem cells to mature cells originating from different tissues, demonstrates that the mechanical properties of the nuclear network are common across various cell types. This points to an asymptotically increasing influence of a solid meshwork of connected chromatin fibers.
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Affiliation(s)
- Omar F Zouani
- Univ. Bordeaux, Institut Européen de Chimie et Biologie, CNRS UMR 5248, F-33607 Pessac, France.
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23
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High-contrast sub-millivolt inelastic X-ray scattering for nano- and mesoscale science. Nat Commun 2014; 5:4219. [PMID: 24953338 PMCID: PMC4083424 DOI: 10.1038/ncomms5219] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Accepted: 05/27/2014] [Indexed: 01/29/2023] Open
Abstract
Photon and neutron inelastic scattering spectrometers are microscopes for imaging condensed matter dynamics on very small length and time scales. Inelastic X-ray scattering permitted the first quantitative studies of picosecond nanoscale dynamics in disordered systems almost 20 years ago. However, the nature of the liquid-glass transition still remains one of the great unsolved problems in condensed matter physics. It calls for studies at hitherto inaccessible time and length scales, and therefore for substantial improvements in the spectral and momentum resolution of the inelastic X-ray scattering spectrometers along with a major enhancement in spectral contrast. Here we report a conceptually new spectrometer featuring a spectral resolution function with steep, almost Gaussian tails, sub-meV (≃620 μeV) bandwidth and improved momentum resolution. The spectrometer opens up uncharted space on the dynamics landscape. New results are presented on the dynamics of liquid glycerol, in the regime that has become accessible with the novel spectrometer.
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24
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Gadalla A, Dehoux T, Audoin B. Transverse mechanical properties of cell walls of single living plant cells probed by laser-generated acoustic waves. PLANTA 2014; 239:1129-1137. [PMID: 24615232 DOI: 10.1007/s00425-014-2045-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2014] [Accepted: 02/07/2014] [Indexed: 06/03/2023]
Abstract
Probing the mechanical properties of plant cell wall is crucial to understand tissue dynamics. However, the exact symmetry of the mechanical properties of this anisotropic fiber-reinforced composite remains uncertain. For this reason, biologically relevant measurements of the stiffness coefficients on individual living cells are a challenge. For this purpose, we have developed the single-cell optoacoustic nanoprobe (SCOPE) technique, which uses laser-generated acoustic waves to probe the stiffness, thickness and viscosity of live single-cell subcompartments. This all-optical technique offers a sub-micrometer lateral resolution, nanometer in-depth resolution, and allows the non-contact measurement of the mechanical properties of live turgid tissues without any assumption of mechanical symmetry. SCOPE experiments reveal that single-cell wall transverse stiffness in the direction perpendicular to the epidermis layer of onion cells is close to that of cellulose. This observation demonstrates that cellulose microfibrils are the main load-bearing structure in this direction, and suggests strong bonding of microfibrils by hemicelluloses. Altogether our measurement of the viscosity at high frequencies suggests that the rheology of the wall is dominated by glass-like dynamics. From a comparison with literature, we attribute this behavior to the influence of the pectin matrix. SCOPE's ability to unravel cell rheology and cell anisotropy defines a new class of experiments to enlighten cell nano-mechanics.
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Affiliation(s)
- Atef Gadalla
- University Bordeaux, I2M, UMR 5295, 33400, Talence, France
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25
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Pezeril T, Klieber C, Shalagatskyi V, Vaudel G, Temnov V, Schmidt OG, Makarov D. Femtosecond imaging of nonlinear acoustics in gold. OPTICS EXPRESS 2014; 22:4590-4598. [PMID: 24663778 DOI: 10.1364/oe.22.004590] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We have developed a high-sensitivity, low-noise femtosecond imaging technique based on pump-probe time-resolved measurements with a standard CCD camera. The approach used in the experiment is based on lock-in acquisitions of images generated by a femtosecond laser probe synchronized to modulation of a femtosecond laser pump at the same rate. This technique allows time-resolved imaging of laser-excited phenomena with femtosecond time resolution. We illustrate the technique by time-resolved imaging of the nonlinear reshaping of a laser-excited picosecond acoustic pulse after propagation through a thin gold layer. Image analysis reveals the direct 2D visualization of the nonlinear acoustic propagation of the picosecond acoustic pulse. Many ultrafast pump-probe investigations can profit from this technique because of the wealth of information it provides over a typical single diode and lock-in amplifier setup, for example it can be used to image ultrasonic echoes in biological samples.
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26
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Brazhkin VV, Fomin YD, Lyapin AG, Ryzhov VN, Tsiok EN, Trachenko K. "Liquid-gas" transition in the supercritical region: fundamental changes in the particle dynamics. PHYSICAL REVIEW LETTERS 2013; 111:145901. [PMID: 24138256 DOI: 10.1103/physrevlett.111.145901] [Citation(s) in RCA: 91] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2013] [Indexed: 06/02/2023]
Abstract
Recently, we have proposed a new dynamic line on the phase diagram in the supercritical region, the Frenkel line. Crossing the line corresponds to the radical changes of system properties. Here, we focus on the dynamics of model Lennard-Jones and soft-sphere fluids. We show that the location of the line can be rigorously and quantitatively established on the basis of the velocity autocorrelation function (VAF) and mean-square displacements. VAF is oscillatory below the line at low temperature, and is monotonically decreasing above the line at high temperature. Using this criterion, we show that the crossover of particle dynamics and key liquid properties occur on the same line. We also show that positive sound dispersion disappears in the vicinity of the line in both systems. We further demonstrate that the dynamic line bears no relationship to the existence of the critical point. Finally, we find that the region of existence of liquidlike dynamics narrows with the increase of the exponent of the repulsive part of interatomic potential.
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Affiliation(s)
- V V Brazhkin
- Institute for High Pressure Physics RAS, 142190 Troitsk, Moscow, Russia
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27
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Bojahr A, Herzog M, Mitzscherling S, Maerten L, Schick D, Goldshteyn J, Leitenberger W, Shayduk R, Gaal P, Bargheer M. Brillouin scattering of visible and hard X-ray photons from optically synthesized phonon wavepackets. OPTICS EXPRESS 2013; 21:21188-97. [PMID: 24103992 DOI: 10.1364/oe.21.021188] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
We monitor how destructive interference of undesired phonon frequency components shapes a quasi-monochromatic hypersound wavepacket spectrum during its local real-time preparation by a nanometric transducer and follow the subsequent decay by nonlinear coupling. We prove each frequency component of an optical supercontinuum probe to be sensitive to one particular phonon wavevector in bulk material and cross-check this by ultrafast x-ray diffraction experiments with direct access to the lattice dynamics. Establishing reliable experimental techniques with direct access to the transient spectrum of the excitation is crucial for the interpretation in strongly nonlinear regimes, such as soliton formation.
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28
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Scherbakov AV, Bombeck M, Jäger JV, Salasyuk AS, Linnik TL, Gusev VE, Yakovlev DR, Akimov AV, Bayer M. Picosecond opto-acoustic interferometry and polarimetry in high-index GaAs. OPTICS EXPRESS 2013; 21:16473-16485. [PMID: 23938498 DOI: 10.1364/oe.21.016473] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
By means of a metal opto-acoustic transducer we generate quasi-longitudinal and quasi-transverse picosecond strain pulses in a (311)-GaAs substrate and monitor their propagation by picosecond acoustic interferometry. By probing at the sample side opposite to the transducer the signals related to the compressive and shear strain pulses can be separated in time. In addition to conventional monitoring of the reflected probe light intensity we monitor also the polarization rotation of the optical probe beam. This polarimetric technique results in improved sensitivity of detection and provides comprehensive information about the elasto-optical anisotropy. The experimental observations are in a good agreement with a theoretical analysis.
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Affiliation(s)
- A V Scherbakov
- Ioffe Physical-Technical Institute, Russian Academy of Sciences, 194021 St Petersburg, Russia.
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29
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Klieber C, Hecksher T, Pezeril T, Torchinsky DH, Dyre JC, Nelson KA. Mechanical spectra of glass-forming liquids. II. Gigahertz-frequency longitudinal and shear acoustic dynamics in glycerol and DC704 studied by time-domain Brillouin scattering. J Chem Phys 2013; 138:12A544. [DOI: 10.1063/1.4789948] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
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30
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Vaudel G, Ruello P, Pezeril T, Gusev V. Competition between inverse piezoelectric effect and deformation potential mechanism in undoped GaAs revealed by ultrafast acoustics. EPJ WEB OF CONFERENCES 2013. [DOI: 10.1051/epjconf/20134104005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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31
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Bencivenga F, Battistoni A, Fioretto D, Gessini A, Sandercock JR, Masciovecchio C. A high resolution ultraviolet Brillouin scattering set-up. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2012; 83:103102. [PMID: 23126746 DOI: 10.1063/1.4756690] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
We report on a high resolution inelastic UV scattering table-top setup conceived for Brillouin measurements. The system is based on a tandem 1+1 pass scanning Fabry-Perot interferometer of Sandercock type. Special optics were used in order to adapt such an interferometric device, nowadays only used at visible or IR wavelength, to the UV range. The advantages with respect to other UV Brillouin scattering instruments are the larger resolving power and the improved contrast in the low frequency spectral region. To corroborate these features we provide a comparison between data obtained using the described system and those from existing UV Brillouin scattering instruments.
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Affiliation(s)
- F Bencivenga
- Sincrotrone Trieste S.C.p.A., S.S. 14 km 163,5 in AREA Science Park, I-34149 Basovizza, Italy.
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32
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Cunsolo A. On the absence of a positive sound dispersion in the THz dynamics of glycerol: an inelastic x-ray scattering study. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2012; 24:375104. [PMID: 22850547 DOI: 10.1088/0953-8984/24/37/375104] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The high frequency transport properties of glycerol are derived from inelastic x-ray scattering spectra measured at different pressures and compared with ultrasound absorption data. As a result, the presence of two distinct relaxation processes is inferred: a slow one, occurring in the GHz window and having an essentially structural character, and a fast one, related instead to microscopic degrees of freedom. While the former originates a neat increase of the apparent, i.e. frequency-dependent, sound velocity, the latter induces no visible dispersive effects on the acoustic propagation. The observed behavior is likely paradigmatic of all glass formers near or below the melting and it is here discussed and explained in some detail.
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Affiliation(s)
- Alessandro Cunsolo
- Photon Sciences Division, Brookhaven National Laboratory, Upton, NY 11973, USA.
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33
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Every AG, Maznev AA. Dispersion of an acoustic pulse passing through a large-grained polycrystalline film. THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 2012; 131:4491-4499. [PMID: 22712922 DOI: 10.1121/1.4714353] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Propagation of a short acoustic pulse through a polycrystalline film comprised of large randomly oriented elastically anisotropic grains is analyzed theoretically. For average grain size much larger than the film thickness, a short acoustic pulse launched normally into the film will traverse each grain in a time determined by the acoustic slowness in the direction normal to the film, which will depend on the local grain orientation. A typical measurement averages over a large number of grains resulting in the broadening of the composite output pulse. The resulting pulse shape is characterized by distinct features related to stationary values of the directionally dependent acoustic slowness of the crystalline material. Maxima and minima in the slowness yield discontinuities in the pulse shape, while saddle points yield logarithmic singularities. For cubic and hexagonal crystals, power law singularities result from cones of directions in which the slowness is a maximum or minimum. Numerical results, taking into account Gaussian broadening of the input pulse, are presented for thin film materials commonly encountered in picosecond ultrasonic experiments, such as copper, gold, and aluminum.
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Affiliation(s)
- A G Every
- School of Physics, University of the Witwatersrand, P.O. Wits 2050, Johannesburg, South Africa.
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34
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Brazhkin VV, Fomin YD, Lyapin AG, Ryzhov VN, Trachenko K. Two liquid states of matter: a dynamic line on a phase diagram. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2012; 85:031203. [PMID: 22587085 DOI: 10.1103/physreve.85.031203] [Citation(s) in RCA: 127] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2011] [Indexed: 05/31/2023]
Abstract
It is generally agreed that the supercritical region of a liquid consists of one single state (supercritical fluid). On the other hand, we show here that liquids in this region exist in two qualitatively different states: "rigid" and "nonrigid" liquids. Rigid to nonrigid transition corresponds to the condition τ≈τ(0), where τ is the liquid relaxation time and τ(0) is the minimal period of transverse quasiharmonic waves. This condition defines a new dynamic crossover line on the phase diagram and corresponds to the loss of shear stiffness of a liquid at all available frequencies and, consequently, to the qualitative change in many important liquid properties. We analyze this line theoretically as well as in real and model fluids and show that the transition corresponds to the disappearance of high-frequency sound, to the disappearance of roton minima, qualitative changes in the temperature dependencies of sound velocity, diffusion, viscous flow, and thermal conductivity, an increase in particle thermal speed to half the speed of sound, and a reduction in the constant volume specific heat to 2k(B) per particle. In contrast to the Widom line that exists near the critical point only, the new dynamic line is universal: It separates two liquid states at arbitrarily high pressure and temperature and exists in systems where liquid-gas transition and the critical point are absent altogether. We propose to call the new dynamic line on the phase diagram "Frenkel line".
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Affiliation(s)
- V V Brazhkin
- Institute for High Pressure Physics RAS, 142190 Troitsk Moscow Region, Russia.
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35
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Dehoux T, Audoin B, Zouani O, Durrieu MC. Mechanical characterization of temperature-sensitive objects using picosecond ultrasonics. ACTA ACUST UNITED AC 2011. [DOI: 10.1088/1742-6596/278/1/012043] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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36
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Min CK, Cahill DG, Granick S. Time-resolved ellipsometry for studies of heat transfer at liquid/solid and gas/solid interfaces. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2010; 81:074902. [PMID: 20687752 DOI: 10.1063/1.3465329] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
We describe a sensitive method for measuring time-dependent changes in refractive index within approximately 5 microm of an interface using off-null time-resolved ellipsometry and a dual-cavity femtosecond laser. The sensitivity to changes in refractive index is two orders of magnitude higher than conventional picosecond interferometry. A thin metal film on a sapphire substrate is heated by approximately 10 K using an ultrafast optical pump pulse; the subsequent changes of the phase difference deltaDelta between p and s polarized reflectivity are tracked using off-null ellipsometry using a time-delayed probe pulse. We demonstrate a sensitivity of deltaDelta approximately = 3x10(-7) deg/square root(Hz) using interfaces between Au and water, and Au and various gases including R134a, a common refrigerant. Our data for the damping rate of approximately 200 MHz frequency acoustic waves in O(2), N(2), and Ar at atmospheric pressure agree well with prior results obtained at much lower pressures and frequencies.
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Affiliation(s)
- Chang-Ki Min
- Department of Materials Science and Engineering, and Frederick Seitz Materials Research Laboratory, University of Illinois, Urbana, Illinois 61801, USA
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Mounier D, Picart P, Babilotte P, Ruello P, Breteau JM, Pézeril T, Vaudel G, Kouyaté M, Gusev V. Jones matrix formalism for the theory of picosecond shear acoustic pulse detection. OPTICS EXPRESS 2010; 18:6767-6778. [PMID: 20389697 DOI: 10.1364/oe.18.006767] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
A theoretical analysis of the transient optical reflectivity of a sample by a normalized Jones matrix is presented. The off-diagonal components of the normalized matrix are identified with the complex rotation of the polarization ellipse. Transient optical polarimetry is a relevant technique to detect shear acoustic strain pulses propagating normally to the surface of an optically isotropic sample. Moreover, polarimetry has a selective sensitivity to shear waves, as this technique cannot detect longitudinal waves that propagate normally to the sample surface.
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Affiliation(s)
- Denis Mounier
- Laboratoire de Physique de l'Etat Condensé, UMR CNRS 6087, Université du Maine, Avenue Olivier Messiaen, 72085 LE MANS Cedex 9, France.
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