New principle for optical tomography and profilometry based on spatial coherence synthesis with a spatially modulated extended light source

Wei Wang; Hirokazu Kozaki; Joseph Rosen; Mitsuo Takeda

doi:10.1117/12.447371

30 October 2001 New principle for optical tomography and profilometry based on spatial coherence synthesis with a spatially modulated extended light source

Wei Wang, Hirokazu Kozaki, Joseph Rosen, Mitsuo Takeda

Author Affiliations +

Proceedings Volume 4596, Advanced Photonic Sensors and Applications II; (2001) https://doi.org/10.1117/12.447371
Event: International Symposium on Photonics and Applications, 2001, Singapore, Singapore

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.

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Wei Wang, Hirokazu Kozaki, Joseph Rosen, and Mitsuo Takeda "New principle for optical tomography and profilometry based on spatial coherence synthesis with a spatially modulated extended light source", Proc. SPIE 4596, Advanced Photonic Sensors and Applications II, (30 October 2001); https://doi.org/10.1117/12.447371

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