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Proceedings Paper

Exciton-polaritons study in ZnO-based hybrid microcavities
Author(s): Yu-Pin Lan; Ying-Yu Lai; Si-Wei Huang; Jun-Rong Chen; Yung-Chi Wu; Shiang-Chi Lin; Tien-Chang Lu; Shing-Chung Wang; Wen-Feng Hsieh; Hui Deng
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Paper Abstract

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.

Paper Details

Date Published: 28 February 2012
PDF: 6 pages
Proc. SPIE 8255, Physics and Simulation of Optoelectronic Devices XX, 82551F (28 February 2012); doi: 10.1117/12.908529
Show Author Affiliations
Yu-Pin Lan, National Chiao Tung Univ. (Taiwan)
Ying-Yu Lai, National Chiao Tung Univ. (Taiwan)
Si-Wei Huang, National Chiao Tung Univ. (Taiwan)
Jun-Rong Chen, National Chiao Tung Univ. (Taiwan)
Yung-Chi Wu, National Chiao Tung Univ. (Taiwan)
Shiang-Chi Lin, National Chiao Tung Univ. (Taiwan)
Tien-Chang Lu, National Chiao Tung Univ. (Taiwan)
Shing-Chung Wang, National Chiao Tung Univ. (Taiwan)
Wen-Feng Hsieh, National Chiao Tung Univ. (Taiwan)
Hui Deng, Univ. of Michigan (United States)

Published in SPIE Proceedings Vol. 8255:
Physics and Simulation of Optoelectronic Devices XX
Bernd Witzigmann; Marek Osinski; Fritz Henneberger; Yasuhiko Arakawa, Editor(s)

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