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Proceedings Paper

Frequency conversion of ultrafast, higher order vector vortex beams (Conference Presentation)

Paper Abstract

Nonlinear frequency conversion processes depend on the polarization state of interacting beams. On the other hand, vector-vortex beams have space-variant polarization in beam transverse plane. In light of these two points, it is challenging to do nonlinear frequency conversion of vector vortex beam in single-pass geometry and retain the polarization characteristics of the beam. Here, we report an experimental scheme for single-pass second harmonic generation (SHG) of vector-vortex beams. Using two contiguous bismuth borate crystals with optic axis orthogonal to each other, we have frequency-doubled the near-IR vector-vortex beam into visible vector-vortex beams with order as high as lsh=24.

Paper Details

Date Published: 9 March 2020
Proc. SPIE 11264, Nonlinear Frequency Generation and Conversion: Materials and Devices XIX, 112640Q (9 March 2020); doi: 10.1117/12.2549942
Show Author Affiliations
Ravi K. Saripalli, Physical Research Lab. (India)
Anirban Ghosh, Physical Research Lab. (India)
Apurv C. Nellikka, Tecnológico de Monterrey (Mexico)
Goutam K. Samanta, Physical Research Lab. (India)

Published in SPIE Proceedings Vol. 11264:
Nonlinear Frequency Generation and Conversion: Materials and Devices XIX
Peter G. Schunemann; Kenneth L. Schepler, Editor(s)

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