Abstract
A tandem organic light-emitting diode structure, excited electrically in the pulsed domain and confined within a double spatial filter configuration, is observed to emit a low-divergence beam (, or times the diffraction limit) with a near-Gaussian spatial distribution. The emission originates from the laser dye Coumarin , which is used as a dopant. Spectral coherence was determined by use of a double-slit interferometer. The interferometric distribution from our device approximates the interferometric pattern obtained from well-known lasers emitting at .
© 2005 Optical Society of America
Full Article | PDF ArticleMore Like This
F. J. Duarte
Opt. Lett. 32(4) 412-414 (2007)
Jia-Xiu Man, Shou-Jie He, Chang-Sheng Shi, Han-Nan Yang, Deng-Ke Wang, and Zheng-Hong Lu
Opt. Lett. 45(13) 3561-3564 (2020)
Yue Qin, Chen-Yang Liu, Rui-Qing Li, Jiong Wang, Ya-Nan Lu, Yue-Hua Chen, Yu-Zhu Wang, Ya-Nan Xu, Xin-Wen Zhang, and Wei Huang
Opt. Lett. 45(23) 6450-6453 (2020)