Open AccessReconfigurable generation of double-ring perfect vortex beam
Author(s) -
Yifeng Du,
Deming Liu,
Songnian Fu,
Yuncai Wang,
Yuwen Qin
Publication year - 2021
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.424664
Subject(s) - topological quantum number , optics , spatial light modulator , optical tweezers , angular momentum , optical vortex , physics , phase modulation , radius , beam (structure) , multiplexing , light beam , modulation (music) , holography , ring (chemistry) , phase (matter) , topology (electrical circuits) , telecommunications , computer science , electrical engineering , quantum mechanics , chemistry , computer security , organic chemistry , phase noise , acoustics , engineering
Perfect vortex beam (PVB), whose ring radius is independent of its topological charge, play an important role in optical trapping and optical communication. Here, we experimentally demonstrate the reconfigurable double-ring PVB (DR-PVB) generation with independent manipulations of the amplitude, the radius, the width, and the topological charge for each ring. Based on complex amplitude modulation (CAM) with a phase-only spatial light modulator (SLM), we successfully verify the proposed DR-PVB generation scheme via the computer-generated hologram. Furthermore, we carry out a quantitative characterization for the generated DR-PVB, in terms of both the generation quality and the generation efficiency. The correlation coefficients of various reconfigurable DR-PVBs are above 0.8, together with the highest generation efficiency of 44%. We believe that, the proposed generation scheme of reconfigurable DR-PVB is desired for applications in both optical tweezers and orbital angular momentum (OAM) multiplexing.