Giant optical anisotropy in R-plane GaN/AlGaN quantum wells caused by valence band mixing effect

機構典藏 > College of Sciences > Graduate Institute & Department of Physics > Journal Article > Item 987654321/27889

Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/27889

Title:	Giant optical anisotropy in R-plane GaN/AlGaN quantum wells caused by valence band mixing effect
Authors:	Chen, Chun-Nan;Su, Wei-Long;Chiang, Jih-Chen;Lo, Ikai;Wang, Wan-Tsang;Lee, Meng-En
Contributors:	淡江大學物理學系
Keywords:	Optical anisotropy;Optical matrix element;R-plane;Valence band mixing
Date:	2008-03
Issue Date:	2013-07-09 15:24:08 (UTC+8)
Publisher:	Amsterdam: Elsevier BV * North-Holland
Abstract:	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.
Relation:	Physics Letters. Section A: General, Atomic and Solid State Physics 372(10), pp.1691-1694
DOI:	10.1016/j.physleta.2007.10.021
Appears in Collections:	[Graduate Institute & Department of Physics] Journal Article

Files in This Item:

File	Description	Size	Format
Giant optical anisotropy in R-plane GaN AlGaN quantum wells caused by valence band mixing effect.pdf		158Kb	Adobe PDF	1	View/Open
index.html		0Kb	HTML	230	View/Open