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Proceedings Paper

Optical coherence tomography by spatio-temporal joint transform correlator
Author(s): Yoshiaki Yasuno; Motoki Nakama; Yasunori Sutoh; Nobukazu Yoshikawa; Masahide Itoh; Toyohiko Yatagai; Masahiko Mori
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Paper Abstract

All optical and one dimensional scanning surface measurement system is constructed. The system uses the principle of spectral interference and optical Fourier transform, or the principle of joint transform correlator. It can determine the three dimensional surface of an object in the accuracy of few 1Om. As a first demonstration, path-length difference of a Michelson interferomter is measured. Next, the surface of an object which has stepped surface is measured.

Paper Details

Date Published: 15 December 2000
PDF: 4 pages
Proc. SPIE 4087, Applications of Photonic Technology 4, (15 December 2000); doi: 10.1117/12.406378
Show Author Affiliations
Yoshiaki Yasuno, Univ. of Tsukuba (Japan)
Motoki Nakama, Univ. of Tsukuba (Japan)
Yasunori Sutoh, Univ. of Tsukuba (Japan)
Nobukazu Yoshikawa, Univ. of Tsukuba (Japan)
Masahide Itoh, Univ. of Tsukuba (Japan)
Toyohiko Yatagai, Univ. of Tsukuba (Japan)
Masahiko Mori, Electrotechnical Lab. (Japan)

Published in SPIE Proceedings Vol. 4087:
Applications of Photonic Technology 4
Roger A. Lessard; George A. Lampropoulos, Editor(s)

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