Vortex generation induced by the spin-orbit interactions in optics: a comparison

Weilai Xiao; Zan Zhang; Xiaohui Ling

doi:10.1117/12.2599832

9 October 2021 Vortex generation induced by the spin-orbit interactions in optics: a comparison

Weilai Xiao, Zan Zhang, Xiaohui Ling

Proceedings Volume 11903, Nanophotonics and Micro/Nano Optics VII; 119030W (2021) https://doi.org/10.1117/12.2599832
Event: SPIE/COS Photonics Asia, 2021, Nantong, JS, China

Conference Poster

Abstract

We theoretically compare two kinds of spin-orbit interaction (SOI) systems in optics, one is that a light beam propagates along the optical axis in a uniaxial crystal, and the other is that it is normally reflected/refracted by a sharp interface. We find that the vortex phases generated by these processes are wavevector-dependent Pancharatnam-Berry phases originating from the topological nature of the beam itself, while the Pancharatnam-Berry phase in an inhomogeneous anisotropic medium (e.g., Q-plates) is coordinate-dependent resulting from the anisotropy of the external materials. We further discuss the SOI efficiency of these systems, and propose several ways to enhance them.

Citation Download Citation

Weilai Xiao, Zan Zhang, and Xiaohui Ling "Vortex generation induced by the spin-orbit interactions in optics: a comparison", Proc. SPIE 11903, Nanophotonics and Micro/Nano Optics VII, 119030W (9 October 2021); https://doi.org/10.1117/12.2599832

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available