Article ID Journal Published Year Pages File Type
7929526 Optics Communications 2015 6 Pages PDF
Abstract
Experimental and numerical study on chirped transient stimulated Raman scattering in ethanol have been performed. Negatively chirped pump pulses yielded much higher conversion efficiency than positively chirped pump pulses. The calculated results reveal that the group velocity mismatch between the pump and Stokes pulses can rapidly degrade the conversion efficiency when the pump laser generates chirped pulses. However, the combined effects of group velocity dispersion and self-phase modulation offset the negative chirps during propagation, yielding higher conversion efficiency. This is a novel mechanism for controlling transient stimulated Raman scattering and is likely to be of importance for various applications.
Related Topics
Physical Sciences and Engineering Materials Science Electronic, Optical and Magnetic Materials
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