標題: Crossover from polariton lasing to exciton lasing in a strongly coupled ZnO microcavity
作者: Lai, Ying-Yu
Chou, Yu-Hsun
Lan, Yu-Pin
Lu, Tien-Chang
Wang, Shing-Chung
Yamamoto, Yoshihisa
光電工程學系
Department of Photonics
公開日期: 3-Feb-2016
摘要: Unlike conventional photon lasing, in which the threshold is limited by the population inversion of the electron-hole plasma, the exciton lasing generated by exciton-exciton scattering and the polariton lasing generated by dynamical condensates have received considerable attention in recent years because of the sub-Mott density and low-threshold operation. This paper presents a novel approach to generate both exciton and polariton lasing in a strongly coupled microcavity (MC) and determine the critical driving requirements for simultaneously triggering these two lasing operation in temperature <140 K and large negative polariton-exciton offset (<-133 meV) conditions. In addition, the corresponding lasing behaviors, such as threshold energy, linewidth, phase diagram, and angular dispersion are verified. The results afford a basis from which to understand the complicated lasing mechanisms in strongly coupled MCs and verify a new method with which to trigger dual laser emission based on exciton and polariton.
URI: http://dx.doi.org/10.1038/srep20581
http://hdl.handle.net/11536/129635
ISSN: 2045-2322
DOI: 10.1038/srep20581
期刊: SCIENTIFIC REPORTS
Volume: 6
起始頁: 0
結束頁: 0
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