Large optical gain AlGaN-delta-GaN quantum wells laser active regions in mid- and deep-ultraviolet spectral regimes
Large optical gain AlGaN-delta-GaN quantum wells laser active regions in mid- and deep-ultraviolet spectral regimes
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DOI：
10.1063/1.3583442
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发表时间：
2011-04
影响因子：
4
通讯作者：
Jing Zhang-;Hongping Zhao;N. Tansu
中科院分区：
文献类型：
--
作者：
Jing Zhang-;Hongping Zhao;N. Tansu
The gain characteristics of high Al-content AlGaN-delta-GaN quantum wells (QWs) are investigated for mid- and deep-ultraviolet (UV) lasers. The insertion of an ultrathin GaN layer in high Al-content AlGaN QWs leads to valence subbands rearrangement, which in turn results in large optical gain for mid- and deep-UV lasers.
