Polarization dependent light extraction of a GaN light emitting diode using dark field angleresolved photoluminescence spectrometry

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/104018

Title:	Polarization dependent light extraction of a GaN light emitting diode using dark field angleresolved photoluminescence spectrometry
Authors:	王智明;Wang, Chih-Ming;Tu, Sheng-Han;Juan, Ta-Ko;Lin, Sheng-Fu;Chang, Jenq-Yang
Contributors:	理學院光電科學與工程學系
Date:	2012-07-30
Issue Date:	2026-04-23 11:41:53 (UTC+8)
Publisher:	United States: Optica Publishing Group
Abstract:	摘要： In this paper, the polarization dependent optical properties of GaN surface relief grating are investigated using dark field angle-resolved photoluminescence (ARPL) spectrometer. The light extraction efficiency with the transverse electric (TE) and transverse magnetic (TM) pumping source represents a TE polarized dominated property. It is found that the TE and TM waveguide modes cannot be simultaneously coupled out, therefore light extraction is polarization dependent. The ARPL spectrum also reveals that the extraction efficiency is relatively high as the dispersion line of the waveguide mode is coincident with the folded free-photon dispersion of the 1D GaN grating. 其他題名： Opt Express 出版者： United States: Optica Publishing Group 出版日期： 2012-07-30 出處： Optics Express, 2012-07, Vol.20 (16), p.17952- 資源來源： Optica Publishing Group Journals 識別號： ISSN: 1094-4087 識別號： EISSN: 1094-4087 識別號： DOI: 10.1364/oe.20.017952 識別號： PMID: 23038344
Appears in Collections:	[Department of Optics and Photonics] journal & Dissertation

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