[OPTICAL REVIEW Vol. 6, No. 1 (1999) 71-76]

Coherence Spectrotomography of Layered Medium with White-Light Continuum

Wataru WATANABE, Yoshiyasu MASUDA and Kazuyoshi ITOH

Department of Applied Physics, Graduate School of Engineering, Osaka University, 2-1, Yamada-oka, Suita, Osaka, 565-0871 Japan

(Received August 5, 1998; Accepted October 5, 1998)

In low-coherence reflectometry, the light scattered back from a scattering medium is expected to carry information about the spectral properties of the medium as well as range information about the reflective boundaries and backscattering sites. We built and evaluated a white-light interferometry system that gives the range and spectral information about the medium using the white-light continuum. The white-light continuum gives an extremely bright and broad spectrum. Experimental results on multi-layered media are presented.

Key words : optical tomography, low-coherence interferometry, spectral imaging, white-light continuum