Abstract

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.

© 2020 Optical Society of America

Cascaded vector vortex mode generation from a solid-state Raman laser

Yoshihiro Nishigata, Shun Sasaki, Katsuhiko Miyamoto, and Takashige Omatsu
Appl. Opt. 60(34) 10638-10642 (2021)

Hybrid generation and analysis of vector vortex beams

Sandra Mamani, Ethan Bendau, Jeff Secor, Solyman Ashrafi, Jiufeng J. Tu, and Robert R. Alfano
Appl. Opt. 56(8) 2171-2175 (2017)

Polarization pattern of vector vortex beams generated by q-plates with different topological charges

Filippo Cardano, Ebrahim Karimi, Sergei Slussarenko, Lorenzo Marrucci, Corrado de Lisio, and Enrico Santamato
Appl. Opt. 51(10) C1-C6 (2012)

Compact optical module to generate arbitrary vector vortex beams

Yuan Zhou, Xing Li, Yanan Cai, Yanan Zhang, Shaohui Yan, Meiling Zhou, Manman Li, and Baoli Yao
Appl. Opt. 59(28) 8932-8938 (2020)

Direct generation of lower-order cylindrical vector vortex modes from an end-pumped Pr³⁺:LiYF₄ laser

Takuya Morohashi, A. Srinivasa Rao, and Takashige Omatsu
Appl. Opt. 62(34) 9183-9187 (2023)