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Optical sound wave recording by digital holography with heterodyne technique
Author(s): Xiangyu Quan; Sudheesh Rajput; Kouichi Nitta; Osamu Matoba; Yasuhiro Awatsuji
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Paper Abstract

A visualization technique of sound wave propagation using digital holography with heterodyne technique is presented. In the proposed method, the frequency of the interference pattern in an off-axis digital holography is down converted into the detectable frequency in an image sensor operated at the video frame rate by using the heterodyne interferometer. We present the principle of the recording technique and experimental results are described.

Paper Details

Date Published: 26 June 2017
PDF: 6 pages
Proc. SPIE 10335, Digital Optical Technologies 2017, 103351G (26 June 2017); doi: 10.1117/12.2270101
Show Author Affiliations
Xiangyu Quan, Kobe Univ. (Japan)
Sudheesh Rajput, Kobe Univ. (Japan)
Kouichi Nitta, Kobe Univ. (Japan)
Osamu Matoba, Kobe Univ. (Japan)
Yasuhiro Awatsuji, Kyoto Institute of Technology (Japan)


Published in SPIE Proceedings Vol. 10335:
Digital Optical Technologies 2017
Bernard C. Kress; Wolfgang Osten; H. Paul Urbach, Editor(s)

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