丝状化
物理
光学
纳秒
极化(电化学)
拉曼散射
涡流
拉曼光谱
激光器
原子物理学
化学
热力学
物理化学
作者
Heinrich Meyer,Sandra Mamani,R. R. Alfano
出处
期刊:Applied Optics
[The Optical Society]
日期:2020-07-14
卷期号:59 (21): 6245-6245
被引量:5
摘要
Stimulated Raman scattering and laser filamentation produced using nanosecond pulsed complex vector vortex beams (CVVB) are investigated in a 20 cm long methanol cell. The CVVB is generated using q -plates and is tested at orbital angular momentum ( L ) values of 1, 2, 3, and 4 and circular, radial, and azimuthal polarizations. The results illustrate that the stability and intensity of the generated stimulated Raman has dependence on input polarization and L value. During filamentation, the beam is also shown to break up into multiple primary filaments and that there is a reduction in small-scale filamentation when using CVVBs.
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