A continuously tunable low-threshold organic semiconductor distributed feedback laser fabricated by rotating shadow mask evaporation

被引：45

作者：

Klinkhammer, S. ^{[1
,2
,3
]}

Woggon, T. ^{[1
,2
]}

Geyer, U. ^{[1
,2
]}

Vannahme, C. ^{[1
,2
,3
]}

Dehm, S. ^{[4
]}

Mappes, T. ^{[3
]}

Lemmer, U. ^{[1
,2
]}

机构：

[1] Light Technol Inst, D-76128 Karlsruhe, Germany

[2] Karlsruhe Inst Technol, CFN, D-76128 Karlsruhe, Germany

[3] Karlsruhe Inst Technol, Inst Microstruct Technol, D-76128 Karlsruhe, Germany

[4] Karlsruhe Inst Technol, Inst Nanotechnol, D-76344 Eggenstein Leopoldshafen, Germany

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 2009年 / 97卷 / 04期

关键词：

WAVE-GUIDE; RESONATORS; POLYMERS; RANGE;

D O I：

10.1007/s00340-009-3789-0

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report on an organic semiconductor distributed feedback laser with a continuously tunable wavelength from 621 to 657 nm on a single sample with thresholds as low as 38 mu J/cm(2). Using laser interference lithography and reactive ion etching, we textured a glass substrate with a one-dimensional second-order Bragg surface grating. Optical confinement and gain is provided by a wedge-shaped layer of the organic semiconductor tris(8-hydroxyquinoline) aluminum doped with the laser dye 4-dicyanomethylene-2-methyl-6-(p-dimethylaminostyril)-4H-pyrane, which is fabricated by a rotating shadow mask evaporation. This allows for a simple, broadband continuous tuning of the laser emission wavelength.

引用

页码：787 / 791

页数：5

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