Stimulated emission in the film of polymer/dye blend

被引：0

作者：

机构：

[1] Zhao, Jiamin

[2] Liu, Xingyuan

[3] Wang, Lijun

[4] Wang, Shumei

[5] Liu, Yun

[6] Ning, Yongqiang

[7] Wu, Dongjiang

[8] Wu, Shengli

[9] Jin, Changqing

[10] Wang, Lixiang

[11] Jing, Xiabin

[12] Wang, Fosong

来源：

Zhao, Jiamin | 2000年 / Elsevier Sequoia SA, Lausanne, Switzerland卷 / 363期

基金：

中国国家自然科学基金;

关键词：

Dye lasers - Laser mode locking - Neodymium lasers - Optical pumping - Polymer blends - Polystyrenes - Spontaneous emission - Stimulated emission;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Optically pumped stimulated emission behavior in an organic film was demonstrated in this study. The gain material consists of a laser dye perylene doped into polystyrene (PS) matrix in an appropriate weight ratio. The sample was transversely pumped by the three harmonic output of a mode-locked Nd:YAG laser. The change of the emission spectra showed a clear threshold action and gain narrowing phenomenon when increasing the excitation intensity. Three emission peaks were observed below the excitation threshold, which are located at 446, 475 and 506 nm, respectively. However, only the gain narrowing peak centered at 475 nm could be detected above the threshold. The spectra narrowing observed results from the amplified spontaneous emission (ASE) in the gain material.

引用

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