6533b7dcfe1ef96bd1271e7a
RESEARCH PRODUCT
Compressive holography with a single-pixel detector.
Pedro AndrésEnrique TajahuercePere ClementeJesús LancisVicente DuránVicent Climentsubject
PhysicsDiffractionbusiness.industryComputer generated holographyDetectorHolographyPhysics::OpticsCompressive sensingComputer-generated holographySingle-pixel camerasAtomic and Molecular Physics and Opticslaw.inventionLens (optics)Phase-shifting holographyInterferometryOpticslawDigital holographic microscopybusinessDigital holographydescription
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.
year | journal | country | edition | language |
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2013-07-10 | Optics letters |