Open AccessOptical vortex phase-shifting digital holography
Author(s) -
Chen Guo,
Xin Cheng,
Xiu-Yun Ren,
Jian-Ping Ding,
HuiTian Wang
Publication year - 2004
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/opex.12.005166
Subject(s) - optics , digital holography , holography , reference beam , optical vortex , vortex , physics , digital holographic microscopy , phase (matter) , computer generated holography , light beam , holographic interferometry , beam (structure) , topological quantum number , quantum mechanics , thermodynamics
We report a new optical vortex phase-shifting method for digital holography, in which an optical vortex mode is taken as the reference beam for holographic recording, and the required phase shifts are directly generated by rotating the vortex mode. In digital reconstruction, the complex amplitude of the object wave can be retrieved by use of the conventional phase shifting algorithm on condition that the digital illumination beam is replaced by an vortex beam with the same topological charge as the reference used. Both the theoretical analysis and experimental results demonstrate the feasibility of this approach.