scholarly journals Scouting for strong light–matter coupling signatures in Raman spectra

2021 ◽  
Author(s):  
Wassie Mersha Takele ◽  
Lukasz Piatkowski ◽  
Frank Wackenhut ◽  
Sylwester Gawinkowski ◽  
Alfred J. Meixner ◽  
...  
Keyword(s):  
Strong Coupling ◽  
Raman Spectra ◽  
Coupling Effect ◽  
Enhancement Effect ◽  
Strong Light ◽  
Surface Enhancement ◽  
Matter Coupling ◽  
Surface Enhancement Effect

Changes in the Raman spectra under vibrational strong coupling do not necessarily result from the coupling effect but rather they can be caused by the surface enhancement effect.

Strong coupling in two-dimensional materials-based nanostructures: a review

2022 ◽  
Author(s):  
Ye Ming Qing ◽  
Yongze Ren ◽  
Dangyuan Lei ◽  
Hui Feng Ma ◽  
Tie Jun Cui
Keyword(s):  
Strong Coupling ◽  
Coupling Effect ◽  
Transition Metal Dichalcogenides ◽  
Hybrid Nanostructures ◽  
Two Dimensional ◽  
Strong Light ◽  
Two Dimensional Materials ◽  
Potential Applications ◽  
Metal Dichalcogenides ◽  
Emission Behavior

Abstract Strong interaction between electromagnetic radiation and matter leads to the formation of hybrid light-matter states, making the absorption and emission behavior different from those of the uncoupled states. Strong coupling effect results in the famous Rabi splitting and the emergence of new polaritonic eigenmodes, exhibiting spectral anticrossing behavior and unique energy-transfer properties. In recent years, there has been a rapidly increasing number of works focusing on strong coupling between nanostructures and two-dimensional materials (2DMs), because of the exceptional properties and applications they demonstrate. Here, we review the significant recent advances and important developments of strong light-matter interactions in 2DMs-based nanostructures. We adopt the coupled oscillator model to describe the strong coupling and give an overview of various hybrid nanostructures to realize this regime, including graphene-based nanostructures, black phosphorus-based nanostructures, transition-metal dichalcogenides-based nanostructures, etc. In addition, we discuss potential applications that can benefit from these effects and conclude our review with a perspective on the future of this rapidly emerging field.

Room temperature Strong coupling in low finesse GaN microcavities

2005 ◽  
Vol 892 ◽  
Author(s):  
Ian Sellers ◽  
Fabrice Semond ◽  
Mathieu Leroux ◽  
Jean Massies ◽  
Pierre Disseix ◽  
...  
Keyword(s):  
Quality Factor ◽  
Strong Coupling ◽  
Transfer Matrix ◽  
Room Temperature ◽  
Experimental Results ◽  
Strong Light ◽  
Matter Coupling ◽  
Bulk Gan ◽  
Angle Dependent Reflectivity

AbstractWe present experimental results demonstrating strong-light matter coupling at low and room temperature in bulk GaN microcavities. Angle dependent reflectivity measurements demonstrate strong-coupling with a Rabi-energy of 50meV at room temperature which is well reproduced with transfer matrix simulations. The absence of strong coupling in the photoluminescence is attributed to the low finesse of the microcavity (Q=60) and is confirmed by simulations which indicate a quality factor of 90 is required to observe strong-coupling in the emission.

scholarly journals Strong light-matter coupling in quantum chemistry and quantum photonics

Nanophotonics ◽  
2018 ◽  
Vol 7 (9) ◽  
pp. 1479-1501 ◽  
Author(s):  
Johannes Flick ◽  
Nicholas Rivera ◽  
Prineha Narang
Keyword(s):  
Quantum Chemistry ◽  
Strong Coupling ◽  
Quantum Electrodynamics ◽  
Density Functional ◽  
Single Photon ◽  
Atomic Scale ◽  
Strong Light ◽  
Matter Coupling ◽  
Theoretical Approaches ◽  
Quantum Photonics

AbstractIn this article, we review strong light-matter coupling at the interface of materials science, quantum chemistry, and quantum photonics. The control of light and heat at thermodynamic limits enables exciting new opportunities for the rapidly converging fields of polaritonic chemistry and quantum optics at the atomic scale from a theoretical and computational perspective. Our review follows remarkable experimental demonstrations that now routinely achieve the strong coupling limit of light and matter. In polaritonic chemistry, many molecules couple collectively to a single-photon mode, whereas, in the field of nanoplasmonics, strong coupling can be achieved at the single-molecule limit. Theoretical approaches to address these experiments, however, are more recent and come from a spectrum of fields merging new developments in quantum chemistry and quantum electrodynamics alike. We review these latest developments and highlight the common features between these two different limits, maintaining a focus on the theoretical tools used to analyze these two classes of systems. Finally, we present a new perspective on the need for and steps toward merging, formally and computationally, two of the most prominent and Nobel Prize-winning theories in physics and chemistry: quantum electrodynamics and electronic structure (density functional) theory. We present a case for how a fully quantum description of light and matter that treats electrons, photons, and phonons on the same quantized footing will unravel new quantum effects in cavity-controlled chemical dynamics, optomechanics, nanophotonics, and the many other fields that use electrons, photons, and phonons.

scholarly journals Strong light-matter coupling for optical switching through the fluorescence and FRET control

2021 ◽  
Vol 2058 (1) ◽  
pp. 012001
Author(s):  
I Nabiev
Keyword(s):  
Energy Transfer ◽  
Strong Coupling ◽  
Optical Switching ◽  
Resonance Energy ◽  
Energy Shift ◽  
Role Reversal ◽  
Strong Light ◽  
Exciton Transition ◽  
Matter Coupling ◽  
Excitonic Transitions

Abstract Resonant interaction between excitonic transitions of molecules and localized electromagnetic field forms the hybrid polaritonic states. Tuneable microresonators may change the light-matter coupling strength and modulate them from weak to strong and ultra-strong coupling regimes. In this work we have realised strong coupling between the tuneable open-access cavity mode and the excitonic transitions in oligonucleotide-based molecular beacons with their terminus labelled with a pair of organic dye molecules demonstrating an efficient donor-to-acceptor Förster resonance energy transfer (FRET). We show that the predominant strong coupling of the cavity photon to the exciton transition in the donor dye molecule can lead to such a large an energy shift that the energy transfer from the acceptor exciton reservoir to the mainly donor lower polaritonic state can be achieved, thus yielding the chromophores’ donor–acceptor role reversal or “carnival effect”. The data show the possibility for confined electromagnetic fields to control and mediate polariton-assisted remote energy transfer. Obtained results open the avenues to quantum optical switching and other applications.

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