Polarized emission characteristics of UV-LED with subwavelength grating

被引：10

作者：

Takashima, Yuusuke ^{[1
]}

Shimizu, Ryo ^{[1
]}

Haraguchi, Masanobu ^{[1
,2
]}

Naoi, Yoshiki ^{[1
,2
]}

机构：

[1] Univ Tokushima, Grad Sch Adv Technol & Sci, Tokushima 7708506, Japan

[2] Univ Tokushima, Inst Sci & Technol, Tokushima 7708506, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS | 2014年 / 53卷 / 07期

基金：

日本学术振兴会;

关键词：

SAPPHIRE SUBSTRATE; AL0.17GA0.83N FILM; GRID POLARIZERS; LAYER; LIGHT; REFLECTORS; DEPOSITION;

D O I：

10.7567/JJAP.53.072101

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We investigated polarized emission from a GaN-based ultraviolet light-emitting diode (UV-LED) with a subwavelength grating (SWG) on the surface. The electroluminescence (EL) spectra showed that the UV-LED exhibits high polarization selectivity, as high as s-polarization : p-polarization = 4 : 1 at a wavelength of 360 nm. The polarized EL characteristics were discussed by the theoretical consideration of Bloch modes resulting from the spatial periodicity of the refractive index in the SWG region and also by finite difference time domain calculations to explore the electromagnetic field. We succeeded in demonstrating the feasibility of a highly polarized UV-LED grown on c-plane sapphire. (C) 2014 The Japan Society of Applied Physics

引用

页数：6

共 29 条

[21] Iridium wire grid polarizer fabricated using atomic layer deposition [J].

Weber, Thomas ;

Kaesebier, Thomas ;

Szeghalmi, Adriana ;

Knez, Mato ;

Kley, Ernst-Bernhard ;

Tuennerman, Andreas .

NANOSCALE RESEARCH LETTERS, 2011, 6 :1-4

[22] Sub-wavelength GaN-based membrane high contrast grating reflectors [J].

Wu, Tzeng Tsong ;

Syu, Yu Cheng ;

Wu, Shu Hsien ;

Chen, Wei Ting ;

Lu, Tien Chang ;

Wang, Shing Chung ;

Chiang, Hai Pang ;

Tsai, Din Ping .

OPTICS EXPRESS, 2012, 20 (18) :20551-20557

[23] Optical characterization of wiregrid micropolarizers designed for infrared imaging polarimetry [J].

Wu, Zhi ;

Powers, Peter E. ;

Sarangan, Andrew M. ;

Zhan, Qiwen .

OPTICS LETTERS, 2008, 33 (15) :1653-1655

[24] Broadband nanowire-grid polarizers in ultraviolet-visible near-infrared regions [J].

Yang, Z. Y. ;

Lu, Y. F. .

OPTICS EXPRESS, 2007, 15 (15) :9510-9519

[25] Highly Polarized Green Light Emitting Diode in m-Axis GaInN/GaN [J].

You, Shi ;

Detchprohm, Theeradetch ;

Zhu, Mingwei ;

Hou, Wenting ;

Preble, Edward A. ;

Hanser, Drew ;

Paskova, Tanya ;

Wetzel, Christian .

APPLIED PHYSICS EXPRESS, 2010, 3 (10)

[26] Polarized GaN-based LED with an integrated multi-layer subwavelength structure [J].

Zhang, Guiju ;

Wang, Chinhua ;

Cao, Bing ;

Huang, Zengli ;

Wang, Jianfeng ;

Zhang, Baoshun ;

Xu, Ke .

OPTICS EXPRESS, 2010, 18 (07) :7019-7030

[27] Design and fabrication of subwavelength nanogratings based light-emitting diodes [J].

Zhang, Liang ;

Teng, Jinghua ;

Chua, Soo Jin ;

Fitzgerald, Eugene A. .

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2011, 103 (03) :827-830

[28] Linearly polarized light emission from InGaN light emitting diode with subwavelength metallic nanograting [J].

Zhang, Liang ;

Teng, Jing Hua ;

Chua, Soo Jin ;

Fitzgerald, Eugene A. .

APPLIED PHYSICS LETTERS, 2009, 95 (26)

[29] Fabrication and performance of thin amorphous Si subwavelength transmission grating for controlling vertical cavity surface emitting laser polarization [J].

Zhuang, L ;

Schablitsky, S ;

Shi, RC ;

Chou, SY .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, 1996, 14 (06) :4055-4057

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