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Proceedings Paper

New principle for optical tomography and profilometry based on spatial coherence synthesis with a spatially modulated extended light source
Author(s): Wei Wang; Hirokazu Kozaki; Joseph Rosen; Mitsuo Takeda
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Paper Abstract

Giving a new physical interpretation to the principle of longitudinal coherence control, we propose an improved method for synthesizing a desired spatial coherence function along the longitudinal axis of light propagation. By controlling the irradiance of an extended quasi-monochromatic spatially incoherent source with a spatial light modulator, we generated a special optical field that exhibits high coherence selectively for the particular pair of points at the specified locations along the axis of beam propagation. This function of longitudinal coherence control provides new possibilities in optical tomography and profilometry. Quantitative experimental proof of the principle is presented.

Paper Details

Date Published: 30 October 2001
PDF: 12 pages
Proc. SPIE 4596, Advanced Photonic Sensors and Applications II, (30 October 2001); doi: 10.1117/12.447371
Show Author Affiliations
Wei Wang, Univ. of Science and Technology of China and Univ. of Electro-Communications (China)
Hirokazu Kozaki, Univ. of Electro-Communications (Japan)
Joseph Rosen, Ben-Gurion Univ. of the Negev (Israel)
Mitsuo Takeda, Univ. of Electro-Communications (Japan)

Published in SPIE Proceedings Vol. 4596:
Advanced Photonic Sensors and Applications II
Anand Krishna Asundi; Wolfgang Osten; Vijay K. Varadan, Editor(s)

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