標題: Exciton-polaritons study in ZnO-based hybrid microcavities
作者: Lan, Yu-Pin
Lai, Ying-Yu
Huang, Si-Wei
Chen, Jun-Rong
Wu, Yung-Chi
Lin, Shiang-Chi
Lu, Tien-Chang
Wang, Shing-Chung
Hsieh, Wen-Feng
Deng, Hui
光電工程學系
Department of Photonics
關鍵字: ZnO;microcavity;exciton-polariton
公開日期: 2012
摘要: The characteristics of exciton-polaritons in ZnO-based microcavities (MCs) are demonstrated with a large vacuum Rabi splitting due to large exciton binding energy and oscillator strength. The lower polariton branches (LPBs) can be clearly observed. For low temperature and large negative detuning conditions, a clear polariton relaxation bottleneck in bulk ZnO-based MCs has been observed in angle-resolved photoluminescence measurements from 100 to 353 K at different cavity-exciton detunings. The bottleneck is strongly suppressed with increasing the temperature and pumping power and reducing detuning. This observed results supposed to be due to more efficient phonon-assisted relaxation and a longer radiative lifetime of the polaritons. In addition, the linewidth broadening, blue-shift of the emission peak, and polarization of polariton lasing from below threshold to up threshold are also discussed.
URI: http://hdl.handle.net/11536/15896
http://dx.doi.org/82551F
ISBN: 978-0-8194-8898-5
ISSN: 0277-786X
DOI: 82551F
期刊: PHYSICS AND SIMULATION OF OPTOELECTRONIC DEVICES XX
Volume: 8255
Appears in Collections:Conferences Paper


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