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Peterson C, Parker J, Valenton E, Yifat Y, Chen S, Rice SA, Scherer NF. Electrodynamic Interference and Induced Polarization in Nanoparticle-Based Optical Matter Arrays. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2024; 128:7560-7571. [PMID: 38745776 PMCID: PMC11089571 DOI: 10.1021/acs.jpcc.3c08459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 04/10/2024] [Accepted: 04/11/2024] [Indexed: 05/16/2024]
Abstract
Optical matter (OM) arrays are self-organizing, ordered arrangements of nanometer- to micrometer-size particles, where interparticle forces are mediated by incident and scattered coherent light. The structures that form and their dynamics depend on the properties (e.g., material, size) of the constituent particles, as well as the incident and scattered light. While significant progress has been made toward understanding how the OM arrays are affected by the phase, polarization, and intensity profile of the incident light, the polarization induced in the particles and the light scattered by OM arrays have received less attention. In this paper, we establish the roles of electrodynamic interference, many-body coupling, and induced-polarization concomitant with the coherent light scattered by OM arrays. Experiments and simulations together demonstrate that the spatial profile and directionality of coherent light scattered by OM arrays in the far field are primarily influenced by interference, while electrodynamic coupling (interactions) and the associated polarization induced in the nanoparticle constituents have a quantitative wavelength-dependent effect on the total amount of light scattered by the arrays. Furthermore, the electrodynamic coupling in silver nanoparticle OM arrays is significantly enhanced by constructive interference and increases superextensively with the number of particles in the array. Particle size, and hence polarizability, also has a significant effect on the strength of the coupling. Finally, we simulate larger hexagonal OM arrays of Ag nanoparticles to demonstrate that the electrodynamic coupling and scattering enhancement observed in small OM arrays develop into surface lattice resonances observed in the infinite array limit. Our work provides insights for designing OM arrays to tune many-body forces and the coherent light that they scatter.
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Affiliation(s)
- Curtis Peterson
- Department of Chemistry, The University of Chicago, Chicago, Illinois 60637, United States
- James Franck Institute, The University of Chicago, Chicago, Illinois 60637, United States
| | - John Parker
- James Franck Institute, The University of Chicago, Chicago, Illinois 60637, United States
- Department of Physics, The University of Chicago, Chicago, Illinois 60637, United States
| | - Emmanuel Valenton
- Department of Chemistry, The University of Chicago, Chicago, Illinois 60637, United States
- James Franck Institute, The University of Chicago, Chicago, Illinois 60637, United States
| | - Yuval Yifat
- James Franck Institute, The University of Chicago, Chicago, Illinois 60637, United States
| | - Shiqi Chen
- Department of Chemistry, The University of Chicago, Chicago, Illinois 60637, United States
- James Franck Institute, The University of Chicago, Chicago, Illinois 60637, United States
| | - Stuart A Rice
- Department of Chemistry, The University of Chicago, Chicago, Illinois 60637, United States
- James Franck Institute, The University of Chicago, Chicago, Illinois 60637, United States
| | - Norbert F Scherer
- Department of Chemistry, The University of Chicago, Chicago, Illinois 60637, United States
- James Franck Institute, The University of Chicago, Chicago, Illinois 60637, United States
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Riccardi M, Martin OJF. Electromagnetic Forces and Torques: From Dielectrophoresis to Optical Tweezers. Chem Rev 2023; 123:1680-1711. [PMID: 36719985 PMCID: PMC9951227 DOI: 10.1021/acs.chemrev.2c00576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Indexed: 02/02/2023]
Abstract
Electromagnetic forces and torques enable many key technologies, including optical tweezers or dielectrophoresis. Interestingly, both techniques rely on the same physical process: the interaction of an oscillating electric field with a particle of matter. This work provides a unified framework to understand this interaction both when considering fields oscillating at low frequencies─dielectrophoresis─and high frequencies─optical tweezers. We draw useful parallels between these two techniques, discuss the different and often unstated assumptions they are based upon, and illustrate key applications in the fields of physical and analytical chemistry, biosensing, and colloidal science.
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Affiliation(s)
- Marco Riccardi
- Nanophotonics and Metrology Laboratory, Swiss Federal Institute of Technology Lausanne (EPFL), EPFL-STI-NAM, Station 11, CH-1015Lausanne, Switzerland
| | - Olivier J. F. Martin
- Nanophotonics and Metrology Laboratory, Swiss Federal Institute of Technology Lausanne (EPFL), EPFL-STI-NAM, Station 11, CH-1015Lausanne, Switzerland
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Nan F, Li X, Zhang S, Ng J, Yan Z. Creating stable trapping force and switchable optical torque with tunable phase of light. SCIENCE ADVANCES 2022; 8:eadd6664. [PMID: 36399578 PMCID: PMC9674277 DOI: 10.1126/sciadv.add6664] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 10/24/2022] [Indexed: 06/03/2023]
Abstract
Light-induced rotation of microscopic objects is of general interest as the objects may serve as micromotors. Such rotation can be driven by the angular momentum of light or recoil forces arising from special light-matter interactions. However, in the absence of intensity gradient, simultaneously controlling the position and switching the rotation direction is challenging. Here, we report stable optical trapping and switchable optical rotation of nanoparticle (NP)-assembled micromotors with programmed phase of light. We imprint customized phase gradients into a circularly polarized flat-top (i.e., no intensity gradient) laser beam to trap and assemble metal NPs into reconfigurable clusters. Modulating the phase gradients allows direction-switchable and magnitude-tunable optical torque in the same cluster under fixed laser wavelength and handedness. This work provides a valuable method to achieve reversible optical torque in micro/nanomotors, and new insights for optical trapping and manipulation using the phase gradient of a spatially extended light field.
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Affiliation(s)
- Fan Nan
- Department of Applied Physical Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Xiao Li
- Department of Physics, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Shuailong Zhang
- School of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Jack Ng
- Department of Physics, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Zijie Yan
- Department of Applied Physical Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
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Chen S, Peterson CW, Parker JA, Rice SA, Ferguson AL, Scherer NF. Data-driven reaction coordinate discovery in overdamped and non-conservative systems: application to optical matter structural isomerization. Nat Commun 2021; 12:2548. [PMID: 33953159 PMCID: PMC8099877 DOI: 10.1038/s41467-021-22794-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 03/22/2021] [Indexed: 11/09/2022] Open
Abstract
Optical matter (OM) systems consist of (nano-)particle constituents in solution that can self-organize into ordered arrays that are bound by electrodynamic interactions. They also manifest non-conservative forces, and the motions of the nano-particles are overdamped; i.e., they exhibit diffusive trajectories. We propose a data-driven approach based on principal components analysis (PCA) to determine the collective modes of non-conservative overdamped systems, such as OM structures, and harmonic linear discriminant analysis (HLDA) of time trajectories to estimate the reaction coordinate for structural transitions. We demonstrate the approach via electrodynamics-Langevin dynamics simulations of six electrodynamically-bound nanoparticles in an incident laser beam. The reaction coordinate we discover is in excellent accord with a rigorous committor analysis, and the identified mechanism for structural isomerization is in very good agreement with the experimental observations. The PCA-HLDA approach to data-driven discovery of reaction coordinates can aid in understanding and eventually controlling non-conservative and overdamped systems including optical and active matter systems.
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Affiliation(s)
- Shiqi Chen
- Department of Chemistry, University of Chicago, Chicago, IL, USA
- James Franck Institute, University of Chicago, Chicago, IL, USA
| | - Curtis W Peterson
- Department of Chemistry, University of Chicago, Chicago, IL, USA
- James Franck Institute, University of Chicago, Chicago, IL, USA
| | - John A Parker
- James Franck Institute, University of Chicago, Chicago, IL, USA
- Department of Physics, University of Chicago, Chicago, IL, USA
| | - Stuart A Rice
- Department of Chemistry, University of Chicago, Chicago, IL, USA
- James Franck Institute, University of Chicago, Chicago, IL, USA
| | - Andrew L Ferguson
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL, USA.
| | - Norbert F Scherer
- Department of Chemistry, University of Chicago, Chicago, IL, USA.
- James Franck Institute, University of Chicago, Chicago, IL, USA.
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Abstract
Out of equilibrium, a lack of reciprocity is the rule rather than the exception. Non-reciprocity occurs, for instance, in active matter1-6, non-equilibrium systems7-9, networks of neurons10,11, social groups with conformist and contrarian members12, directional interface growth phenomena13-15 and metamaterials16-20. Although wave propagation in non-reciprocal media has recently been closely studied1,16-20, less is known about the consequences of non-reciprocity on the collective behaviour of many-body systems. Here we show that non-reciprocity leads to time-dependent phases in which spontaneously broken continuous symmetries are dynamically restored. We illustrate this mechanism with simple robotic demonstrations. The resulting phase transitions are controlled by spectral singularities called exceptional points21. We describe the emergence of these phases using insights from bifurcation theory22,23 and non-Hermitian quantum mechanics24,25. Our approach captures non-reciprocal generalizations of three archetypal classes of self-organization out of equilibrium: synchronization, flocking and pattern formation. Collective phenomena in these systems range from active time-(quasi)crystals to exceptional-point-enforced pattern formation and hysteresis. Our work lays the foundation for a general theory of critical phenomena in systems whose dynamics is not governed by an optimization principle.
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Rodrigo JA, Angulo M, Alieva T. Tailored optical propulsion forces for controlled transport of resonant gold nanoparticles and associated thermal convective fluid flows. LIGHT, SCIENCE & APPLICATIONS 2020; 9:181. [PMID: 33133521 PMCID: PMC7589520 DOI: 10.1038/s41377-020-00417-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 09/15/2020] [Accepted: 10/10/2020] [Indexed: 05/27/2023]
Abstract
Noble metal nanoparticles illuminated at their plasmonic resonance wavelength turn into heat nanosources. This phenomenon has prompted the development of numerous applications in science and technology. Simultaneous optical manipulation of such resonant nanoparticles could certainly extend the functionality and potential applications of optothermal tools. In this article, we experimentally demonstrate optical transport of single and multiple resonant nanoparticles (colloidal gold spheres of radius 200 nm) directed by tailored transverse phase-gradient forces propelling them around a 2D optical trap. We show how the phase-gradient force can be designed to efficiently change the speed of the nanoparticles. We have found that multiple hot nanoparticles assemble in the form of a quasi-stable group whose motion around the laser trap is also controlled by such optical propulsion forces. This assembly experiences a significant increase in the local temperature, which creates an optothermal convective fluid flow dragging tracer particles into the assembly. Thus, the created assembly is a moving heat source controlled by the propulsion force, enabling indirect control of fluid flows as a micro-optofluidic tool. The existence of these flows, probably caused by the temperature-induced Marangoni effect at the liquid water/superheated water interface, is confirmed by tracking free tracer particles migrating towards the assembly. We propose a straightforward method to control the assembly size, and therefore its temperature, by using a nonuniform optical propelling force that induces the splitting or merging of the group of nanoparticles. We envision further development of microscale optofluidic tools based on these achievements.
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Affiliation(s)
- José A. Rodrigo
- Facultad de Ciencias Físicas, Ciudad Universitaria s/n, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Mercedes Angulo
- Facultad de Ciencias Físicas, Ciudad Universitaria s/n, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Tatiana Alieva
- Facultad de Ciencias Físicas, Ciudad Universitaria s/n, Universidad Complutense de Madrid, 28040 Madrid, Spain
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Xin H, Li Y, Liu YC, Zhang Y, Xiao YF, Li B. Optical Forces: From Fundamental to Biological Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2001994. [PMID: 32715536 DOI: 10.1002/adma.202001994] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 04/22/2020] [Indexed: 05/06/2023]
Abstract
Optical forces, generally arising from changes of field gradients or linear momentum carried by photons, form the basis for optical trapping and manipulation. Advances in optical forces help to reveal the nature of light-matter interactions, giving answers to a wide range of questions and solving problems across various disciplines, and are still yielding new insights in many exciting sciences, particularly in the fields of biological technology, material applications, and quantum sciences. This review focuses on recent advances in optical forces, ranging from fundamentals to applications for biological exploration. First, the basics of different types of optical forces with new light-matter interaction mechanisms and near-field techniques for optical force generation beyond the diffraction limit with nanometer accuracy are described. Optical forces for biological applications from in vitro to in vivo are then reviewed. Applications from individual manipulation to multiple assembly into functional biophotonic probes and soft-matter superstructures are discussed. At the end future directions for application of optical forces for biological exploration are provided.
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Affiliation(s)
- Hongbao Xin
- Institute of Nanophotonics, Jinan University, Guangzhou, 511443, China
| | - Yuchao Li
- Institute of Nanophotonics, Jinan University, Guangzhou, 511443, China
| | - Yong-Chun Liu
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing, 100084, China
| | - Yao Zhang
- Institute of Nanophotonics, Jinan University, Guangzhou, 511443, China
| | - Yun-Feng Xiao
- State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, Beijing, 100871, China
- Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, 030006, China
- Peking University Yangtze Delta Institute of Optoelectronics, Nantong, Jiangsu, 226010, China
| | - Baojun Li
- Institute of Nanophotonics, Jinan University, Guangzhou, 511443, China
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Lu JS, Wang HY, Kudo T, Masuhara H. Large Submillimeter Assembly of Microparticles with Necklace-like Patterns Formed by Laser Trapping at Solution Surface. J Phys Chem Lett 2020; 11:6057-6062. [PMID: 32658483 DOI: 10.1021/acs.jpclett.0c01602] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In colloidal solution, nanoparticles can be optically trapped by a tightly focused laser beam, and they are assembled in a focal spot whose diameter is typically about one micrometer. We herein report that a large submillimeter sized assembly of polystyrene microparticles with necklace-like patterns are prepared by laser trapping at a solution surface. The light propagation outside the focal spot is directly confirmed by 1064 nm backscattering images, and finite difference time domain simulation well supports the idea that an optical potential is expanded outside the focal spot based on light propagation through whispering gallery mode. This demonstration opens a new method for fabrication of a millimeter-order huge assembly by a single tightly focused laser beam.
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Affiliation(s)
- Jia-Syun Lu
- Department of Applied Chemistry, College of Science, National Chiao Tung University, Hsinchu 30010, Taiwan
| | - Hsuan-Yin Wang
- Department of Applied Chemistry, College of Science, National Chiao Tung University, Hsinchu 30010, Taiwan
| | - Tetsuhiro Kudo
- Department of Applied Chemistry, College of Science, National Chiao Tung University, Hsinchu 30010, Taiwan
| | - Hiroshi Masuhara
- Department of Applied Chemistry, College of Science, National Chiao Tung University, Hsinchu 30010, Taiwan
- Center for Emergent Functional Matter Science, National Chiao Tung University, Hsinchu 30010, Taiwan
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Šípová-Jungová H, Andrén D, Jones S, Käll M. Nanoscale Inorganic Motors Driven by Light: Principles, Realizations, and Opportunities. Chem Rev 2019; 120:269-287. [DOI: 10.1021/acs.chemrev.9b00401] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Hana Šípová-Jungová
- Department of Physics, Chalmers University of Technology, S-412 96 Göteborg, Sweden
| | - Daniel Andrén
- Department of Physics, Chalmers University of Technology, S-412 96 Göteborg, Sweden
| | - Steven Jones
- Department of Physics, Chalmers University of Technology, S-412 96 Göteborg, Sweden
| | - Mikael Käll
- Department of Physics, Chalmers University of Technology, S-412 96 Göteborg, Sweden
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Nan F, Yan Z. Tuning Nanoparticle Electrodynamics by an Optical-Matter-Based Laser Beam Shaper. NANO LETTERS 2019; 19:3353-3358. [PMID: 31013096 DOI: 10.1021/acs.nanolett.9b01090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Spatially modulated optical fields provide the perspective of tuning nanoparticle (NP) dynamics in a colloidal suspension. Here, it is shown that the lateral interferometric optical field created by a chain of optically bound Au NPs (i.e., optical matter) can tailor the electrodynamic interactions among more Au NPs. The free-standing NP chain, which is assembled and confined by an auxiliary optical line, shapes the main trapping beam and guides the self-organization of Au NPs under an optimized polarization direction. We find that the NP chain can largely enhance the anisotropic optical binding interaction of two nearby NPs but suppress the anisotropic interaction of multiple NPs, leading to isotropic self-organization. The dynamics and structural transitions of the NPs are well-reproduced in a simulation by using a coupled finite-difference time-domain (FDTD)-Langevin dynamics approach. Our work provides a new dual-beam optical trapping and in situ laser beam shaping approach to study and control interparticle electrodynamic interactions among colloidal NPs.
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Affiliation(s)
- Fan Nan
- Department of Chemical and Biomolecular Engineering , Clarkson University , Potsdam , New York 13699 , United States
| | - Zijie Yan
- Department of Chemical and Biomolecular Engineering , Clarkson University , Potsdam , New York 13699 , United States
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