Raman mode random lasing in ZnS-β-carotene random gain media

Raman mode random lasing is demonstrated in ZnS-b-carotene random gain media at room temperature. A self assembled random medium is prepared with ZnS sub micron spheres synthesized by homogeneous precipitation method. b-Carotene extracted from pale green leaves is embedded in this random medium....

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Main Authors: Bingi, Jayachandra, Warrier, Anita R., Vijayan, C.
其他作者: School of Mechanical and Aerospace Engineering
格式: Article
語言:English
出版: 2015
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在線閱讀:https://hdl.handle.net/10356/103612
http://hdl.handle.net/10220/25822
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總結:Raman mode random lasing is demonstrated in ZnS-b-carotene random gain media at room temperature. A self assembled random medium is prepared with ZnS sub micron spheres synthesized by homogeneous precipitation method. b-Carotene extracted from pale green leaves is embedded in this random medium. The emission band of ZnS random medium (on excitation at 488 nm) overlaps considerably with that of b-carotene, which functions as a gain medium. Here, random medium works as a cavity, leading to Raman mode lasing at 517nm and 527nm triggered by stimulated resonance Raman scattering