{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,28]],"date-time":"2026-09-28T19:55:34Z","timestamp":1790625334525,"version":"4.1.0"},"reference-count":0,"publisher":"SPIE-Intl Soc Optical Eng","issue":"10","license":[{"start":{"date-parts":[[2013,7,17]],"date-time":"2013-07-17T00:00:00Z","timestamp":1374019200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Opt. Eng."],"published-print":{"date-parts":[[2013,7,17]]},"abstract":"<jats:p>Acoustically induced vibrations of the tympanic membrane (TM) play a primary role in the hearing process, in that these motions are the initial mechanical response of the ear to airborne sound. Characterization of the shape and three-dimensional (3-D) displacement patterns of the TM is a crucial step to a better understanding of the complicated mechanics of sound reception by the ear. Sound-induced 3-D displacements of the TM are estimated from shape and one-dimensional displacements measured in cadaveric chinchillas using a lensless dual-wavelength digital holography system (DWDHS). The DWDHS consists of laser delivery, optical head, and computing platform subsystems. Shape measurements are performed in double-exposure mode with the use of two wavelengths of a tunable laser, while nanometer-scale displacements are measured along a single sensitivity direction with a constant wavelength. Taking into consideration the geometrical and dimensional constrains imposed by the anatomy of the TM, we combine principles of thin-shell theory together with displacement measurements along a single sensitivity vector and TM surface shape to extract the three principal components of displacement in the full-field-of-view. We test, validate, and identify limitations of this approach via the application of finite element method to artificial geometries.<\/jats:p>","DOI":"10.1117\/1.oe.52.10.101916","type":"journal-article","created":{"date-parts":[[2013,7,17]],"date-time":"2013-07-17T18:31:37Z","timestamp":1374085897000},"page":"1-12","source":"Crossref","is-referenced-by-count":36,"title":["Digital holographic measurements of shape and three-dimensional sound-induced displacements of tympanic membrane"],"prefix":"10.1117","volume":"52","author":[{"given":"Morteza","family":"Khaleghi","sequence":"first","affiliation":[{"name":"Worcester Polytechnic Institute"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Weina","family":"Lu","sequence":"additional","affiliation":[{"name":"Worcester Polytechnic Institute"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ivo","family":"Dobrev","sequence":"additional","affiliation":[{"name":"Worcester Polytechnic Institute"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jeffrey T.","family":"Cheng","sequence":"additional","affiliation":[{"name":"Massachusetts Eye and Ear Infirmary"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cosme","family":"Furlong","sequence":"additional","affiliation":[{"name":"Worcester Polytechnic Institute"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"John","family":"Rosowski","sequence":"additional","affiliation":[{"name":"Harvard Medical School"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"189","container-title":["Optical Engineering"],"original-title":[],"link":[{"URL":"https:\/\/www.spiedigitallibrary.org\/journals\/optical-engineering\/volume-52\/issue-10\/101916\/Digital-holographic-measurements-of-shape-and-three-dimensional-sound-induced\/10.1117\/1.OE.52.10.101916.full","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,9,28]],"date-time":"2026-09-28T19:02:01Z","timestamp":1790622121000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.spiedigitallibrary.org\/journals\/optical-engineering\/volume-52\/issue-10\/101916\/Digital-holographic-measurements-of-shape-and-three-dimensional-sound-induced\/10.1117\/1.OE.52.10.101916.full"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2013,7,17]]},"references-count":0,"journal-issue":{"issue":"10"},"URL":"https:\/\/doi.org\/10.1117\/1.oe.52.10.101916","relation":{},"ISSN":["0091-3286","1560-2303"],"issn-type":[{"value":"0091-3286","type":"print"},{"value":"1560-2303","type":"electronic"}],"subject":[],"published":{"date-parts":[[2013,7,17]]}}}