Giant optical anisotropy in R-plane GaN/AlGaN quantum wells caused by valence band mixing effect
學年 96
學期 2
出版（發表）日期 2008-03-01
作品名稱 Giant optical anisotropy in R-plane GaN/AlGaN quantum wells caused by valence band mixing effect
作品名稱（其他語言）
著者 Chen, Chun-Nan; Su, Wei-Long; Chiang, Jih-Chen; Lo, Ikai; Wang, Wan-Tsang; Lee, Meng-En
單位 淡江大學物理學系
出版者 Amsterdam: Elsevier BV * North-Holland
著錄名稱、卷期、頁數 Physics Letters. Section A: General, Atomic and Solid State Physics 372(10), pp.1691-1694
摘要 This study investigates the optical anisotropy spectrum in the R-plane (i.e., the View the MathML source[101¯2]-oriented layer plane) of GaN/Al0.2Ga0.8N quantum wells of different widths. The optical matrix elements in the wurtzite quantum wells are calculated using the k⋅pk⋅p finite difference scheme. The calculations show that the valence band mixing effect produces giant in-plane optical anisotropy in View the MathML source[101¯2]-oriented GaN/Al0.2Ga0.8N quantum wells with a narrow width. The nature of the in-plane optical anisotropy is found to be dependent on the well width. Specifically, it is found that the anisotropy changes from x′x′-polarization to y′y′-polarization as the well width increases.
關鍵字 Optical anisotropy;Optical matrix element;R-plane;Valence band mixing
語言 en
ISSN 0375-9601
期刊性質 國外
收錄於 SCI
產學合作
通訊作者
審稿制度
國別 NLD
公開徵稿
出版型式 紙本
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