Abstract

We investigate the conversion between orbital and spin components of the angular momentum of light beams in the second-harmonic generation process from the near-surface layer of the nonlinear isotropic medium without spatial dispersion at oblique incidence of the elliptically polarized fundamental beam. The conservation of the projection of both spin and orbital angular momenta onto the normal to the surface of the medium during the transformation of the incident wave into a reflected double frequency wave has been demonstrated.

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Transformation of spin and orbital angular momentum in second-harmonic generation process at oblique incidence of light from the surface of an isotropic medium with spatial dispersion of quadratic nonlinearity

K. S. Grigoriev, V. A. Diukov, and V. A. Makarov
Opt. Lett. 46(6) 1245-1248 (2021)

Interconversion between the orbital and spin angular momentum of light beams in three-wave mixing processes in the bulk of an isotropic chiral medium

K. S. Grigoriev, I. A. Perezhogin, and V. A. Makarov
Opt. Lett. 43(21) 5182-5185 (2018)

Interconversion of orbital and spin angular momenta of light beams in the sum-frequency generation process from the surface of the isotropic chiral medium

K. S. Grigoriev, V. A. Diukov, and V. A. Makarov
Opt. Lett. 45(2) 276-279 (2020)

Interconversion between OAM and SAM in five-wave mixing process in medium with the fourth-order optical susceptibility

V. A. Diukov, K. S. Grigoriev, and V. A. Makarov
Opt. Lett. 47(6) 1307-1310 (2022)

Fractional orbital angular momentum conversion in second-harmonic generation with an asymmetric perfect vortex beam

Kunjian Dai, J. Keith Miller, Wenzhe Li, Richard J. Watkins, and Eric G. Johnson
Opt. Lett. 46(14) 3332-3335 (2021)