Steady-state stimulated Raman generation and filamentation using complex vector vortex beams
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.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jul 14, 2020
- Source ID
- 10.1364/ao.393973
Entities
People
- Henry J. Meyer
- Robert Alfano
- Sandra Mamani
Organizations
- Army Research Office
- Corning Inc.