Room temperature exciton-polariton condensate in an optically-controlled trap

Nanoscale
Xinhan ZhangWeihang Zhou

Abstract

We report experimental studies on the optical properties of an exciton polariton condensate confined in an optically defined trap at room temperature. As a result of the parabolic profile of the optical trap, the polariton condensate redistributes itself in simple harmonic oscillator states, forming an analog of the gravity pendulum. We observed the coexistence of two harmonic oscillator modes in a single trap, which were confirmed to be confined modes connected by longitudinal optical (LO) phonons using Raman spectroscopy. Clear features of mode competition behaviors were observed for these two harmonic oscillators when the injection rate of polaritons was varied. The observed mode competition was successfully simulated by a three-level rate equation model. In addition, as a result of the bosonic stimulation in the trap region, up to ∼88% of the injected polaritons were successfully trapped when polariton lasing takes place.

References

Sep 29, 2006·Nature·J KasprzakLe Si Dang
Apr 28, 2009·Physical Review Letters·Simone De Liberato, Cristiano Ciuti
Apr 7, 2010·Physical Review Letters·G NardinB Deveaud-Plédran
Apr 27, 2011·Physical Review Letters·Lydie FerrierJacqueline Bloch
Nov 24, 2011·Physical Review Letters·C AdradosL Viña
May 21, 2013·Physical Review Letters·P CristofoliniJ J Baumberg
Mar 3, 2015·Proceedings of the National Academy of Sciences of the United States of America·Gangqiang LiuKen West
Mar 20, 2015·Proceedings of the National Academy of Sciences of the United States of America·Long ZhangZhanghai Chen
Nov 15, 2016·Reports on Progress in Physics·C SchneiderS Höfling
Jan 21, 2017·Physical Review Letters·Yongbao SunKeith A Nelson

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Citations

Jan 13, 2021·Nanoscale·Mingming JiangCaixia Kan
Oct 7, 2021·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Fei ChenJian Wu

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