Blue surface-emitting distributed feedback lasers based on TPD-doped films

被引：28

作者：

Calzado, Eva M. ^{[1
,2
]}

Villalvilla, Jose M. ^{[1
,3
]}

Boj, Pedro G. ^{[1
,4
]}

Quintana, Jose A. ^{[1
,4
]}

Postigo, Pablo A. ^{[5
]}

Diaz-Garcia, Maria A. ^{[1
,3
]}

机构：

[1] Univ Alicante, IUMA, E-03080 Alicante, Spain

[2] Univ Alicante, Dept Fis, E-03080 Alicante, Spain

[3] Univ Alicante, Dept Fis Aplicada, E-03080 Alicante, Spain

[4] Univ Alicante, Dept Opt, E-03080 Alicante, Spain

[5] CSIC, Ctr Nacl Microelect, Madrid 28760, Spain

来源：

APPLIED OPTICS | 2010年 / 49卷 / 03期

关键词：

AMPLIFIED SPONTANEOUS EMISSION; SEMICONDUCTING POLYMER; OPTICAL GAIN;

D O I：

10.1364/AO.49.000463

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Single-mode second-order distributed feedback (DFB) lasers with low threshold, based on polystyrene films doped with 30 wt.% of the hole-transporting organic molecule N,N'-bis (3-methylphenyl)-N,N'-diphenylbenzidine (TPD) are reported. The laser emission wavelength was tuned between 415 and 427 nm by film thickness variation. The effectiveness of the DFB grating in improving the laser performance is evidenced by the observation of linewidths and laser thresholds lower than those of the amplified spontaneous emission characteristics shown by films without gratings. The use of holographic lithography as the technique for grating recording has allowed us to prepare large samples in a fast, versatile, and simple manner. (C) 2010 Optical Society of America

引用

页码：463 / 470

页数：8

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