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Lasing characteristics of curved semiconductor nanowires |
Weisong YANG1, Yipei WANG1, Yaoguang MA2, Chao MENG1, Xiaoqin WU1, Qing YANG1() |
1. State Key Laboratory of Modern Optical Instrumentation, Department of Optical Engineering, Zhejiang University, Hangzhou 310027, China; 2. State Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871, China |
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Abstract The characteristics of curved semiconductor nanowire (NW) lasers were investigated. The red-shift in the laser spectra with increasing bending angles can be observed much more clearly than that in the photoluminescence (PL) spectra. Due to oscillation of light in resonant cavity, the bending loss of laser exhibits multiple times amplification of that of PL. Furthermore, an abnormal phenomenon of dominant peak switching is found in curved NWs when increasing the pump power, which has been first discovered and reported.
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Keywords
semiconductor nanowire
lasing characteristics
red-shift
bending loss
dominant peaks
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Corresponding Author(s):
YANG Qing,Email:qingyang@zju.edu.cn
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Issue Date: 05 December 2013
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