Open AccessDynamics of excited-state condensate for optically confined exciton-polaritons
Author(s) -
Chi Xu,
Baowen Zhou,
Xiaogang Wang,
Tian Shu Cui,
Yingjun Zhang,
Hongxing Dong,
Guoping Wang,
Weihang Zhou
Publication year - 2019
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.27.024938
Subject(s) - polariton , excited state , exciton , trap (plumbing) , exciton polaritons , physics , whispering gallery , whispering gallery wave , optics , atomic physics , condensed matter physics , molecular physics , materials science , laser , meteorology
We report experimental studies on the dynamics of excited-state condensate for exciton-polaritons confined in an optically generated trap. The three-dimensionally confined trap was realized by imposing two optical barriers onto a one-dimensional ZnO whispering gallery microcavity. Experimentally, we characterized the confined polariton condensate by varying the trap width and the barrier height. Theoretically, we calculated the spatial overlap between the polariton wavefunction and the excitonic reservoir. Direct comparison of these results verified that such polariton-reservoir overlap was responsible for the observed excited-state polariton condensate.