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Park, Jung-Hoon
Bio-Optics Lab
Research Interests
  • Biomedical optics, wavefront shaping, In-vivo deep tissue imaging

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Increasing the enhancement factor for DMD-based wavefront shaping

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dc.contributor.author Nam, Kibum ko
dc.contributor.author Park, Jung-Hoon ko
dc.date.available 2020-07-30T07:51:45Z -
dc.date.created 2020-07-29 ko
dc.date.issued 2020-07 ko
dc.identifier.citation OPTICS LETTERS, v.45, no.13, pp.3381 - 3384 ko
dc.identifier.issn 0146-9592 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/47385 -
dc.description.abstract Focusing through scattering media is a subject of great interest due to its direct impact in the field of biomedical optics. However, the greatest barrier currently limiting direct applications is the fact that most scattering media that we wish to deliver light through are dynamic. To focus or deliver light through dynamic scattering media, using a digital micromirror device (DMD) has been demonstrated to be a potential solution, as it enables fast modulation speeds. However, since a DMD is a binary amplitude modulator, the large number of controlled modes needed to acquire adequate focus enhancement has limited optimal usage. Here we demonstrate a novel (to the best of our knowledge) scheme to use the "thrown-away" components of light to effectively use a binary amplitude DMD as a binary phase modulator, thereby increasing the correction efficiency by a factor of two. Our concept can be applied to any iterative optimization algorithm and can speed up the iterative optimization process by increasing the enhancement factor, rather than the measurement or modulation speeds. (C) 2020 Optical Society of America ko
dc.language 영어 ko
dc.publisher OPTICAL SOC AMER ko
dc.title Increasing the enhancement factor for DMD-based wavefront shaping ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-85087696137 ko
dc.identifier.wosid 000546808900007 ko
dc.type.rims ART ko
dc.identifier.doi 10.1364/OL.394752 ko
dc.identifier.url https://www.osapublishing.org/ol/abstract.cfm?uri=ol-45-13-3381 ko
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