Abstract

Symmetry constraints on the far-field diffraction of Laguerre–Gauss vortex beams by planar aperture arrays with $N$-fold rotational symmetry are considered. The experiments reveal a simple structure for the diffraction pattern and high degree of degeneracy in its dependence on the orbital angular momentum index of the incident beam in agreement with analytical and numerical results.

© 2018 Optical Society of America

Diffraction of orbital angular momentum carrying optical beams by a circular aperture

A. Ambuj, R. Vyas, and S. Singh
Opt. Lett. 39(19) 5475-5478 (2014)

Polarization of orbital angular momentum carrying laser beams

Jessica Conry, Reeta Vyas, and Surendra Singh
J. Opt. Soc. Am. A 30(5) 821-824 (2013)

Anharmonic propagation of two-dimensional beams carrying orbital angular momentum in a harmonic potential

Yiqi Zhang, Xing Liu, Milivoj R. Belić, Weiping Zhong, Feng Wen, and Yanpeng Zhang
Opt. Lett. 40(16) 3786-3789 (2015)

Tailoring diffraction of light carrying orbital angular momenta

Denis A. Ikonnikov and Andrey M. Vyunishev
Opt. Lett. 45(14) 3909-3912 (2020)

Phase-engineered metalenses to generate converging and non-diffractive vortex beam carrying orbital angular momentum in microwave region

Kuang Zhang, Yueyi Yuan, Dawei Zhang, Xumin Ding, Badreddine Ratni, Shah Nawaz Burokur, Manjun Lu, Kun Tang, and Qun Wu
Opt. Express 26(2) 1351-1360 (2018)