6533b7dcfe1ef96bd1271e7a

RESEARCH PRODUCT

Compressive holography with a single-pixel detector.

Pedro AndrésEnrique TajahuercePere ClementeJesús LancisVicente DuránVicent Climent

subject

PhysicsDiffractionbusiness.industryComputer generated holographyDetectorHolographyPhysics::OpticsCompressive sensingComputer-generated holographySingle-pixel camerasAtomic and Molecular Physics and Opticslaw.inventionLens (optics)Phase-shifting holographyInterferometryOpticslawDigital holographic microscopybusinessDigital holography

description

This Letter develops a framework for digital holography at optical wavelengths by merging phase-shifting interferometry with single-pixel optical imaging based on compressive sensing. The field diffracted by an input object is sampled by Hadamard patterns with a liquid crystal spatial light modulator. The concept of a single-pixel camera is then adapted to perform interferometric imaging of the sampled diffraction pattern by using a Mach-Zehnder interferometer. Phase-shifting techniques together with the application of a backward light propagation algorithm allow the complex amplitude of the object under scrutiny to be resolved. A proof-of-concept experiment evaluating the phase distribution of an ophthalmic lens with compressive phase-shifting holography is provided.

10.1364/ol.38.002524https://pubmed.ncbi.nlm.nih.gov/23939101