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Multiple angle digital holography for the shape measurement of the unpainted tympanic membrane
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SYSNO ASEP 0541074 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Multiple angle digital holography for the shape measurement of the unpainted tympanic membrane Author(s) Psota, Pavel (UFP-V) RID, ORCID
Tang, H. (US)
Pooladvand, K. (US)
Furlong, C. (US)
Rosowski, J. J. (US)
Cheng, J. T. (US)
Lédl, Vít (UFP-V) RIDNumber of authors 7 Source Title Optics Express. - : Optical Society of America - ISSN 1094-4087
Roč. 28, č. 17 (2020), s. 24614-24628Number of pages 15 s. Language eng - English Country US - United States Keywords digital holography ; npainted tympanic membrane Subject RIV BH - Optics, Masers, Lasers OECD category Optics (including laser optics and quantum optics) R&D Projects EF16_026/0008390 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) GA16-11965S GA ČR - Czech Science Foundation (CSF) Method of publishing Open access Institutional support UFP-V - RVO:61389021 UT WOS 000560936200025 EID SCOPUS 85090758249 DOI 10.1364/OE.398919 Annotation The shape of the tympanic membrane (TM) plays an important role in sound transmission through the ear for hearing. Previously we developed a high-speed holographic system employing a tunable wavelength laser for rapid TM shape measurement. However, the tunable laser illumination was not sufficient to measure the shape of the unpainted TM due to the semi-transparency of the TM and short exposure time of the camera. This paper presents a new multiple angle illumination technique that allows us to use a higher power single wavelength laser to perform shape measurements on the unpainted TM. Accuracy of the new method is demonstrated by a measure of a step gauge provided by the National Institute of Standards and Technology. We successfully applied the new shape measurement method on a fresh postmortem human TM without any paint. Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2021 Electronic address https://www.osapublishing.org/oe/fulltext.cfm?uri=oe-28-17-24614&id=434207
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