Abstract

We present an analytic calculation of the diffraction of a vortex beam by a triangular aperture. This calculation is used to study the diffraction of multimode vortex beams and off-axis vortex beams. Implications of these results for the effectiveness of diffraction as a vortex detection method are discussed.

© 2016 Optical Society of America

Theory of diffraction of vortex beams from structured apertures and generation of elegant elliptical vortex Hermite–Gaussian beams

Davud Hebri, Saifollah Rasouli, and Ali Mardan Dezfouli
J. Opt. Soc. Am. A 36(5) 839-852 (2019)

Visualization of the birth of an optical vortex using diffraction from a triangular aperture

A. Mourka, J. Baumgartl, C. Shanor, K. Dholakia, and E. M. Wright
Opt. Express 19(7) 5760-5771 (2011)

Near-core structure of a propagating optical vortex

Priyanka Lochab, P. Senthilkumaran, and Kedar Khare
J. Opt. Soc. Am. A 33(12) 2485-2490 (2016)

Measuring the topological charge of ultrabroadband, optical-vortex beams with a triangular aperture

Matthew E. Anderson, Heath Bigman, Luís E. E. de Araujo, and Jan L. Chaloupka
J. Opt. Soc. Am. B 29(8) 1968-1976 (2012)

Nonparaxial propagation of vector vortex beams diffracted by a circular aperture

Xianghan Cui, Chaolin Wang, and Xinting Jia
J. Opt. Soc. Am. A 36(1) 115-123 (2019)