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Malerba M, Sotgiu S, Schirato A, Baldassarre L, Gillibert R, Giliberti V, Jeannin M, Manceau JM, Li L, Davies AG, Linfield EH, Alabastri A, Ortolani M, Colombelli R. Detection of Strong Light-Matter Interaction in a Single Nanocavity with a Thermal Transducer. ACS NANO 2022; 16:20141-20150. [PMID: 36399696 DOI: 10.1021/acsnano.2c04452] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The concept of strong light-matter coupling has been demonstrated in semiconductor structures, and it is poised to revolutionize the design and implementation of components, including solid state lasers and detectors. We demonstrate an original nanospectroscopy technique that permits the study of the light-matter interaction in single subwavelength-sized nanocavities where far-field spectroscopy is not possible using conventional techniques. We inserted a thin (∼150 nm) polymer layer with negligible absorption in the mid-infrared range (5 μm < λ < 12 μm) inside a metal-insulator-metal resonant cavity, where a photonic mode and the intersubband transition of a semiconductor quantum well are strongly coupled. The intersubband transition peaks at λ = 8.3 μm, and the nanocavity is overall 270 nm thick. Acting as a nonperturbative transducer, the polymer layer introduces only a limited alteration of the optical response while allowing to reveal the optical power absorbed inside the concealed cavity. Spectroscopy of the cavity losses is enabled by the polymer thermal expansion due to heat dissipation in the active part of the cavity, and performed using atomic force microscopy (AFM). This innovative approach allows the typical anticrossing characteristic of the polaritonic dispersion to be identified in the cavity loss spectra at the single nanoresonator level. Results also suggest that near-field coupling of the external drive field to the top metal patch mediated by a metal-coated AFM probe tip is possible, and it enables the near-field mapping of the cavity mode symmetry including in the presence of a strong light-matter interaction.
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Affiliation(s)
- Mario Malerba
- Centre de Nanosciences et de Nanotechnologies (C2N), CNRS UMR 9001, Université Paris-Saclay, 10 Boulevard Thomas Gobert, 91120Palaiseau, France
| | - Simone Sotgiu
- Department of Physics, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185Rome, Italy
| | - Andrea Schirato
- Dipartimento di Fisica, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133Milan, Italy
- Istituto Italiano di Tecnologia, via Morego 30, 16163Genoa, Italy
| | - Leonetta Baldassarre
- Department of Physics, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185Rome, Italy
| | - Raymond Gillibert
- Center for Life NanoScience, Istituto Italiano di Tecnologia, Viale Regina Elena 291, 00161Rome, Italy
| | - Valeria Giliberti
- Center for Life NanoScience, Istituto Italiano di Tecnologia, Viale Regina Elena 291, 00161Rome, Italy
| | - Mathieu Jeannin
- Centre de Nanosciences et de Nanotechnologies (C2N), CNRS UMR 9001, Université Paris-Saclay, 10 Boulevard Thomas Gobert, 91120Palaiseau, France
| | - Jean-Michel Manceau
- Centre de Nanosciences et de Nanotechnologies (C2N), CNRS UMR 9001, Université Paris-Saclay, 10 Boulevard Thomas Gobert, 91120Palaiseau, France
| | - Lianhe Li
- School of Electronic and Electrical Engineering, University of Leeds, Woodhouse Lane, LS29JTLeeds, United Kingdom
| | - Alexander Giles Davies
- School of Electronic and Electrical Engineering, University of Leeds, Woodhouse Lane, LS29JTLeeds, United Kingdom
| | - Edmund H Linfield
- School of Electronic and Electrical Engineering, University of Leeds, Woodhouse Lane, LS29JTLeeds, United Kingdom
| | - Alessandro Alabastri
- Department of Electrical and Computer Engineering, Rice University, 6100 Main Street, Houston, Texas77005, United States
| | - Michele Ortolani
- Department of Physics, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185Rome, Italy
- Center for Life NanoScience, Istituto Italiano di Tecnologia, Viale Regina Elena 291, 00161Rome, Italy
| | - Raffaele Colombelli
- Centre de Nanosciences et de Nanotechnologies (C2N), CNRS UMR 9001, Université Paris-Saclay, 10 Boulevard Thomas Gobert, 91120Palaiseau, France
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Abstract
Free-space coupling to subwavelength individual optical elements is a central theme in quantum optics, as it allows the control over individual quantum systems. Here we show that, by combining an asymmetric immersion lens setup and a complementary resonating metasurface we are able to perform terahertz time-domain spectroscopy of an individual, strongly subwavelength meta-atom. We unravel the linewidth dependence as a function of the meta-atom number indicating quenching of the superradiant coupling. On these grounds, we investigate ultrastrongly coupled Landau polaritons at the single resonator level, measuring a normalized coupling ratio \documentclass[12pt]{minimal}
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\begin{document}$$\frac{{{\Omega }}}{\omega }=0.6$$\end{document}Ωω=0.6. Similar measurements on a lower density two dimensional electron gas yield a coupling ratio \documentclass[12pt]{minimal}
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\begin{document}$$\frac{{{\Omega }}}{\omega }=0.33$$\end{document}Ωω=0.33 with a cooperativity C = 94. Our findings pave the way towards the control of ultrastrong light-matter interaction at the single electron/ resonator level. The proposed technique is way more general and can be useful to characterize the complex conductivity of micron-sized samples in the terahertz domain. By combining an asymmetric immersion lens setup and a complementary resonating metasurface, the authors are able to resolve the far-field transmission of an ultrastrongly coupled, highly subwavelength split-ring single resonator at millimeter wavelengths.
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Say Z, Kaya M, Kaderoğlu Ç, Koçak Y, Ercan KE, Sika-Nartey AT, Jalal A, Turk AA, Langhammer C, Jahangirzadeh Varjovi M, Durgun E, Ozensoy E. Unraveling Molecular Fingerprints of Catalytic Sulfur Poisoning at the Nanometer Scale with Near-Field Infrared Spectroscopy. J Am Chem Soc 2022; 144:8848-8860. [PMID: 35486918 PMCID: PMC9121382 DOI: 10.1021/jacs.2c03088] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
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Fundamental understanding
of catalytic deactivation phenomena such
as sulfur poisoning occurring on metal/metal-oxide interfaces is essential
for the development of high-performance heterogeneous catalysts with
extended lifetimes. Unambiguous identification of catalytic poisoning
species requires experimental methods simultaneously delivering accurate
information regarding adsorption sites and adsorption geometries of
adsorbates with nanometer-scale spatial resolution, as well as their
detailed chemical structure and surface functional groups. However,
to date, it has not been possible to study catalytic sulfur poisoning
of metal/metal-oxide interfaces at the nanometer scale without sacrificing
chemical definition. Here, we demonstrate that near-field nano-infrared
spectroscopy can effectively identify the chemical nature, adsorption
sites, and adsorption geometries of sulfur-based catalytic poisons
on a Pd(nanodisk)/Al2O3 (thin-film) planar model
catalyst surface at the nanometer scale. The current results reveal
striking variations in the nature of sulfate species from one nanoparticle
to another, vast alterations of sulfur poisoning on a single Pd nanoparticle
as well as at the assortment of sulfate species at the active metal–metal-oxide
support interfacial sites. These findings provide critical molecular-level
insights crucial for the development of long-lifetime precious metal
catalysts resistant toward deactivation by sulfur.
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Affiliation(s)
- Zafer Say
- Department of Chemistry, Bilkent University, 06800 Ankara, Turkey.,Department of Materials Science and Nanotechnology Engineering, TOBB University of Economics and Technology, 06510 Ankara, Turkey.,Department of Physics, Chalmers University of Technology, SE-412-96 Gothenburg, Sweden
| | - Melike Kaya
- Institute of Acceleration Technologies, Ankara University, 06830 Ankara, Turkey.,Turkish Accelerator and Radiation Laboratory (TARLA), 06830 Ankara, Turkey
| | - Çağıl Kaderoğlu
- Turkish Accelerator and Radiation Laboratory (TARLA), 06830 Ankara, Turkey.,Department of Physics Engineering, Ankara University, 06100 Ankara, Turkey
| | - Yusuf Koçak
- Department of Chemistry, Bilkent University, 06800 Ankara, Turkey
| | - Kerem Emre Ercan
- Department of Chemistry, Bilkent University, 06800 Ankara, Turkey
| | | | - Ahsan Jalal
- Department of Chemistry, Bilkent University, 06800 Ankara, Turkey
| | - Ahmet Arda Turk
- Department of Chemistry, Bilkent University, 06800 Ankara, Turkey
| | - Christoph Langhammer
- Department of Physics, Chalmers University of Technology, SE-412-96 Gothenburg, Sweden
| | | | - Engin Durgun
- UNAM─National Nanotechnology Research Center, Bilkent University, 06800 Bilkent, Ankara, Turkey
| | - Emrah Ozensoy
- Department of Chemistry, Bilkent University, 06800 Ankara, Turkey.,UNAM─National Nanotechnology Research Center, Bilkent University, 06800 Bilkent, Ankara, Turkey
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4
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Biliškov N. Infrared spectroscopic monitoring of solid-state processes. Phys Chem Chem Phys 2022; 24:19073-19120. [DOI: 10.1039/d2cp01458k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We put a spotlight on IR spectroscopic investigations in materials science by providing a critical insight into the state of the art, covering both fundamental aspects, examples of its utilisation, and current challenges and perspectives focusing on the solid state.
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Affiliation(s)
- Nikola Biliškov
- Rudjer Bošković Institute, Bijenička c. 54, 10000 Zagreb, Croatia
- Department of Chemistry, McGill University, 801 Sherbrooke St. West, Montreal, QC, H3A 0B8, Canada
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Xue M, Li M, Huang Y, Chen R, Li Y, Wang J, Xing Y, Chen J, Yan H, Xu H, Chen J. Observation and Ultrafast Dynamics of Inter-Sub-Band Transition in InAs Twinning Superlattice Nanowires. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2004120. [PMID: 32876964 DOI: 10.1002/adma.202004120] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 07/28/2020] [Indexed: 06/11/2023]
Abstract
A variety of infrared applications rely on semiconductor superlattices, including, notably, the realization of high-power, compact quantum cascade lasers. Requirements for atomically smooth interface and limited lattice matching options set high technical standards for fabricating applicable heterostructure devices. The semiconductor twinning superlattice (TSL) forms in a single compound with periodically spaced twin boundaries and sharp interface junctions and can be grown with convenient synthesis methods. Therefore, employing semiconductor TSL may facilitate the development of optoelectronic applications related to superlattice structures. Here, it is shown that InAs TSL nanowires generate inter-sub-band transition channels due to the band projection and the Bragg-like electron reflection. The findings reveal the physical mechanisms of inter-sub-band transitions in TSL structure and suggest that TSL structures are promising candidates for mid-infrared optoelectronic applications.
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Affiliation(s)
- Mengfei Xue
- Institute of Physics, Chinese Academy of Sciences and Beijing National Laboratory for Condensed Matter Physics, P.O. Box 603, Beijing, 100190, China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ming Li
- Beijing Key Laboratory of Quantum Devices, Key Laboratory for Physics and Chemistry of Nanodevices and Department of Electronics, Peking University, Beijing, 100871, China
| | - Yisheng Huang
- Beijing Key Laboratory of Quantum Devices, Key Laboratory for Physics and Chemistry of Nanodevices and Department of Electronics, Peking University, Beijing, 100871, China
| | - Runkun Chen
- Institute of Physics, Chinese Academy of Sciences and Beijing National Laboratory for Condensed Matter Physics, P.O. Box 603, Beijing, 100190, China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yunliang Li
- Institute of Physics, Chinese Academy of Sciences and Beijing National Laboratory for Condensed Matter Physics, P.O. Box 603, Beijing, 100190, China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jingyun Wang
- Beijing Key Laboratory of Quantum Devices, Key Laboratory for Physics and Chemistry of Nanodevices and Department of Electronics, Peking University, Beijing, 100871, China
| | - Yingjie Xing
- Beijing Key Laboratory of Quantum Devices, Key Laboratory for Physics and Chemistry of Nanodevices and Department of Electronics, Peking University, Beijing, 100871, China
| | - Jianjun Chen
- State Key Laboratory for Mesoscopic Physics, Department of Physics, Collaborative Innovation Center of Quantum Matter, Peking University, Beijing, 100871, China
- Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, 030006, China
| | - Hugen Yan
- State Key Laboratory of Surface Physics and Department of Physics and Key Laboratory of Micro and Nano-Photonic Structures (Ministry of Education), Fudan University, Shanghai, 200433, China
| | - Hongqi Xu
- Beijing Key Laboratory of Quantum Devices, Key Laboratory for Physics and Chemistry of Nanodevices and Department of Electronics, Peking University, Beijing, 100871, China
- Beijing Academy of Quantum Information Sciences, Beijing, 100193, China
| | - Jianing Chen
- Institute of Physics, Chinese Academy of Sciences and Beijing National Laboratory for Condensed Matter Physics, P.O. Box 603, Beijing, 100190, China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
- Songshan Lake Materials Laboratory, Dongguan, 523808, China
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