Distributed feedback polymer laser with an external feedback structure fabricated by holographic polymerization technique

被引：34

作者：

Huang, Wenbin ^{[2
,3
]}

Diao, Zhihui ^{[2
,3
]}

Liu, Yonggang ^{[2
]}

Peng, Zenghui ^{[2
]}

Yang, Chengliang ^{[2
]}

Ma, Ji ^{[1
]}

Xuan, Li ^{[2
]}

机构：

[1] Kent State Univ, Inst Liquid Crystal, Kent, OH 44242 USA

[2] Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, State Key Lab Appl Opt, Changchun 130033, Peoples R China

[3] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

来源：

ORGANIC ELECTRONICS | 2012年 / 13卷 / 11期

基金：

中国国家自然科学基金;

关键词：

Distributed feedback organic laser; Semiconducting polymer; Waveguide; Holographic polymer dispersed liquid crystals; WAVE-GUIDE; FILMS; THRESHOLD; GRATINGS;

D O I：

10.1016/j.orgel.2012.07.004

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Distributed feedback polymer laser with a grating in the waveguide cladding layer was prepared by holographic polymer dispersed liquid crystals (HPDLCs). The holographic polymerization technique enables one-step formation of an organic grating on top of a homogenous semiconducting polymer poly(2-methoxy-5-(2'-ethyl-hexyloxy)-p-phenylenevinylene) (MEH-PPV) layer. Under optical pumping, a lasing threshold of 21 mu J/cm(2) and a bandwidth of 0.7 nm were obtained in a single longitudinal mode operation. Further studies on the effect of the semiconducting polymer thickness show the amount of evanescent wave spread into the grating layer determines the laser performance of the proposed device. (C) 2012 Elsevier BM. All rights reserved.

引用

页码：2307 / 2311

页数：5

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