Influence of amplified spontaneous emission and fluorescence of β-carotene on stimulated Raman scattering of carbon disulfide

作     者：MEN ZhiWei SUN XiuPing FANG WenHui LI ZuoWei CAO Biao GAO ShuQin LU GuoHui 

作者机构：Department of PhysicsJilin UniversityChangchun 130021China Department of PhysicsChangchun University of Science and TechnologyChangchun 130022China 

出 版 物：《Science China(Physics,Mechanics & Astronomy)》 (中国科学：物理学、力学、天文学（英文版）)

年 卷 期：2009年第52卷第4期

页      面：529-533页

核心收录：

学科分类：070207[理学-光学] 07[理学] 08[工学] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：Supported by the National Natural Science Foundation of China(Grant No.10774057) 

主　　题：β-carotene ASE fluorescence SRS LCOF 

摘      要：β-carotene with double fluorescence characteristics and large third-order optical nonlinearities,which is dissolved in the carbon disulfide(CS2) as the core medium of a liquid core optical fiber(LCOF),is applied in the study of the CS2 stimulated Raman scattering(SRS). The results of this study show that when the concentrations of solution are more than 3.72×10-7 mol/L,the amplified spontaneous emis-sion(ASE) of β-carotene is the main factor influencing the threshold and intensity of Stokes lines; when the concentrations of solution are lower than 3.72×10-7 mol/L,the ASE disappears and the fluorescence plays the key role:The high-order Stokes lines may be observed at very low input-laser power,and the Stokes thresholds decrease as the solution concentration increases. The result may be widely used in the study of broadband stimulated radiation laser and seeding laser.