Potentialities of GaN-based microcavities in strong coupling regime at room temperature

2004 ◽  
Vol 36 (4-6) ◽  
pp. 599-606 ◽  
Author(s):  
N. Antoine-Vincent ◽  
F. Natali ◽  
D. Byrne ◽  
P. Disseix ◽  
A. Vasson ◽  
...  
Keyword(s):  
Strong Coupling ◽  
Room Temperature ◽  
Strong Coupling Regime

Strong Coupling: Polariton Bose Condensation

2017 ◽  
Author(s):  
Alexey V. Kavokin ◽  
Jeremy J. Baumberg ◽  
Guillaume Malpuech ◽  
Fabrice P. Laussy
Keyword(s):  
Strong Coupling ◽  
Room Temperature ◽  
Elevated Temperatures ◽  
Dissipative System ◽  
Bose Condensation ◽  
Einstein Condensation ◽  
Strong Coupling Regime ◽  
Stimulated Scattering ◽  
Exciton Polaritons ◽  
Bose Einstein

In this Chapter we address the physics of Bose-Einstein condensation and its implications to a driven-dissipative system such as the polariton laser. We discuss the dynamics of exciton-polaritons non-resonantly pumped within a microcavity in the strong coupling regime. It is shown how the stimulated scattering of exciton-polaritons leads to formation of bosonic condensates that may be stable at elevated temperatures, including room temperature.

scholarly journals Strong optomechanical coupling at room temperature by coherent scattering

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Andrés de los Ríos Sommer ◽  
Nadine Meyer ◽  
Romain Quidant
Keyword(s):  
Strong Coupling ◽  
Coupling Strength ◽  
Room Temperature ◽  
Quantum Control ◽  
Optical Cavity ◽  
Coherent Scattering ◽  
Strong Coupling Regime ◽  
Cavity Decay ◽  
Decoherence Rate ◽  
Optomechanical Coupling

AbstractQuantum control of a system requires the manipulation of quantum states faster than any decoherence rate. For mesoscopic systems, this has so far only been reached by few cryogenic systems. An important milestone towards quantum control is the so-called strong coupling regime, which in cavity optomechanics corresponds to an optomechanical coupling strength larger than cavity decay rate and mechanical damping. Here, we demonstrate the strong coupling regime at room temperature between a levitated silica particle and a high finesse optical cavity. Normal mode splitting is achieved by employing coherent scattering, instead of directly driving the cavity. The coupling strength achieved here approaches three times the cavity linewidth, crossing deep into the strong coupling regime. Entering the strong coupling regime is an essential step towards quantum control with mesoscopic objects at room temperature.

Advances in the Realisation of GaN-Based Microcavities: Towards Strong Coupling at Room Temperature

2003 ◽  
Vol 798 ◽  
Author(s):  
F. Semond ◽  
D. Byrne ◽  
F. Natali ◽  
M. Leroux ◽  
J. Massies ◽  
...  
Keyword(s):  
Molecular Beam Epitaxy ◽  
Strong Coupling ◽  
Silicon Substrate ◽  
Room Temperature ◽  
Molecular Beam ◽  
Optical Cavity ◽  
Strong Coupling Regime ◽  
Rabi Splitting ◽  
Dielectric Mirror ◽  
High Finesse

ABSTRACTIn a recent paper [Phys. Rev. B 68, 153313 (2003)], we reported the first experimental observation of the strong coupling regime in a GaN-based microcavity. The λ/2 GaN optical cavity was grown by molecular beam epitaxy on a Si(111) substrate. The upper mirror is a SiO2/Si3N4 dielectric mirror and the silicon substrate acts as the bottom mirror. With such a relatively simple and low-finesse microcavity, a Rabi splitting of 31 meV was measured at 5K. On the basis of this very encouraging result, approaches to fabricate high-finesse GaN-based cavities exhibiting strong coupling with stable polaritons at room temperature are discussed.

Tailoring the strong coupling regime in III-nitride based microcavities for room temperature polariton laser applications

2009 ◽  
Vol 6 (12) ◽  
pp. 2820-2827 ◽  
Author(s):  
Jacques Levrat ◽  
Raphaël Butté ◽  
Gabriel Christmann ◽  
Eric Feltin ◽  
Jean-François Carlin ◽  
...  
Keyword(s):  
Strong Coupling ◽  
Room Temperature ◽  
Strong Coupling Regime ◽  
Laser Applications

scholarly journals Room temperature quantum coherence vs. electron transfer in a rhodanine derivative chromophore

2019 ◽  
Vol 21 (23) ◽  
pp. 12640-12648 ◽  
Author(s):  
Duvalier Madrid-Úsuga ◽  
Cristian E. Susa ◽  
John H. Reina
Keyword(s):  
Electron Transfer ◽  
Strong Coupling ◽  
Temperature Effects ◽  
Population Inversion ◽  
Quantum Coherence ◽  
Room Temperature ◽  
Light Harvesting ◽  
Strong Coupling Regime ◽  
Rhodanine Derivative ◽  
Solvent Properties

Quantum coherence and their interplay with electronic transfer (ET) in organic-based materials for light harvesting rely on the solvent properties and temperature effects, as shown in the figure for the D2F complex (D–A push–pull chromophore) population inversion (left), and ET rates (right) for methanol in the strong coupling regime. ET rates are enhanced, at room temperature, by two orders of magnitude if compared to results obtained for toluene.

Strong coupling: resonant effects

2017 ◽  
Author(s):  
Alexey V. Kavokin ◽  
Jeremy J. Baumberg ◽  
Guillaume Malpuech ◽  
Fabrice P. Laussy
Keyword(s):  
Strong Coupling ◽  
Experimental Studies ◽  
Strong Coupling Regime ◽  
Theoretical Studies ◽  
Stimulated Scattering ◽  
Quantum Theories ◽  
Pump Probe ◽  
Exciton Polaritons ◽  
Linear Optical Properties ◽  
Experimental And Theoretical Studies

This chapter presents experimental studies performed on planar semiconductor microcavities in the strong-coupling regime. The first section reviews linear experiments performed in the 1990s that evidence the linear optical properties of cavity exciton-polaritons. The chapter is then focused on experimental and theoretical studies of resonantly excited microcavity emission. We mainly describe experimental configuations in which stimulated scattering was observed due to formation of a dynamical condensate of polaritons. Pump-probe and cw experiments are described in addition. Dressing of the polariton dispersion and bistability of the polariton system due to inter-condensate interactions are discussed. The semiclassical and the quantum theories of these effects are presented and their results analysed. The potential for realization of devices is also discussed.

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