Intersubband optical absorption between multi energy levels of electrons in InGaN/GaN spherical core-shell quantum dots

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• 作者：W.H. Liu ; Y. Qu ; ^{quyuan@imu.edu.cn} ; S.L. Ban
• 关键词：Intersubband optical absorption ; Refractive index change ; CSQD ; Built in electric field ; Ternary mixed crystal effect ; Size effect
• 刊名：Superlattices and Microstructures
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：102
• 期：Complete
• 页码：373-381
• 全文大小：1977 K
• 卷排序：102

文摘

Based on the finite element method, the electronic states are calculeted in consideration of built-in electric field (BEF). Under the BEF, the optical absorption between intersubbands with main quantum numbers n = 1 and n = 2 is as important as that between ones with n = 1. Size and ternary component can be used to modify the optical absorption coefficients and refractive index changes.