Organic semiconductor distributed feedback (DFB) laser as excitation source in Raman spectroscopy

被引：42
|
作者：
Liu, Xin [1 ,2 ,3 ]
Stefanou, Panagiotis [1 ,2 ]
Wang, Bohui [1 ,2 ]
Woggon, Thomas [1 ,2 ,3 ,4 ]
Mappes, Timo [3 ]
Lemmer, Uli [1 ,2 ,3 ]
机构：
[1] Karlsruhe Inst Technol KIT, Light Technol Inst LTI, D-76128 Karlsruhe, Germany
[2] Karlsruhe Inst Technol KIT, DFG Ctr Funct Nanostruct CFN, D-76128 Karlsruhe, Germany
[3] Karlsruhe Inst Technol KIT, Inst Microstruct Technol IMT, D-76128 Karlsruhe, Germany
[4] VISOLAS GmbH, D-76344 Eggenstein Leopoldshafen, Germany
来源：
OPTICS EXPRESS | 2013年 / 21卷 / 23期
关键词：
FILMS;
D O I：
10.1364/OE.21.028941
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
As an application of organic semiconductor distributed feedback (DFB) lasers we demonstrate their use as excitation sources in Raman spectroscopy. We employed an efficient small molecule blend, a high quality resonator and a novel encapsulation method resulting in an improved laser output power, a reduced laser line width and an enhanced power stability. Based on theses advances, Raman spectroscopy on selected substances was enabled. Raman spectra of sulfur and cadmium sulfide are presented and compared with the ones excited by a helium-neon laser. We also fabricated a spectrally tunable organic semiconductor DFB laser to optimize the Raman signals for a given optical filter configuration. (C) 2013 Optical Society of America
引用
收藏
页码：28941 / 28947
页数：7
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