Open AccessSingle-shot phase imaging with randomized light (SPIRaL)
Author(s) -
Ryoichi Horisaki,
Riki Egami,
Jun Tanida
Publication year - 2016
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.24.003765
Subject(s) - optics , spiral (railway) , physics , ghost imaging , light field , phase (matter) , single shot , amplitude , light beam , mathematics , mathematical analysis , quantum mechanics
We present a method for single-shot phase imaging with randomized light (SPIRaL). In SPIRaL, the complex (amplitude and phase) field of an object illuminated with a randomized coherent beam is captured with an image sensor, without the need for any reference light. The object field is retrieved from the single captured intensity image by a compressive sensing-based algorithm with a sparsity constraint. SPIRaL has higher observation speed, light efficiency, and flexibility of the implementation compared with previous methods. We demonstrate SPIRaL numerically and experimentally.