Phase imaging by spatial wavefront sampling
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Other documents of the author: Soldevila, Fernando; Durán, Vicente; Clemente Pesudo, Pedro Javier; Lancis, Jesús; Tajahuerce, Enrique
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comunitat-uji-handle2:10234/43662
comunitat-uji-handle3:10234/43643
comunitat-uji-handle4:
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Title
Phase imaging by spatial wavefront samplingAuthor (s)
Date
2018Publisher
Optical Society of AmericaISSN
2334-2536Type
info:eu-repo/semantics/articlePublisher version
https://www.osapublishing.org/optica/abstract.cfm?uri=optica-5-2-164&origin=searchVersion
info:eu-repo/semantics/submittedVersionAbstract
Phase-imaging techniques extract the optical path length information of a scene, whereas wavefront sensors provide
the shape of an optical wavefront. Since these two applications have different technical requirements, ... [+]
Phase-imaging techniques extract the optical path length information of a scene, whereas wavefront sensors provide
the shape of an optical wavefront. Since these two applications have different technical requirements, they have developed
their own specific technologies. Here we show how to perform phase imaging combining wavefront sampling
using a reconfigurable spatial light modulator with a beam position detector. The result is a time-multiplexed
detection scheme, capable of being shortened considerably by compressive sensing. This robust referenceless method
does not require the phase-unwrapping algorithms demanded by conventional interferometry, and its lenslet-free
nature removes trade-offs usually found in Shack–Hartmann sensors. [-]
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Optica, Vol. 5, No. 2, February 2018Rights
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info:eu-repo/semantics/openAccess
info:eu-repo/semantics/openAccess
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- INIT_Articles [754]