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Opt Lett. 2007 Oct 15;32(20):3005-7.

Digital holographic tomography based on spectral interferometry.

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Department of Biomedical Engineering, Beckman Laser Institute, University of California, Irvine, Irvine, California 92612, USA.


A digital holographic tomography system has been developed with the use of an inexpensive broadband light source and a fiber-based spectral interferometer. Multiple synthesized holograms (or object wave fields) of different wavelengths are obtained by transversely scanning a probe beam. The acquisition speed is improved compared with conventional wavelength-scanning digital holographic systems. The optical field of a volume around the object location is calculated by numerical diffraction from each synthesized hologram, and all such field volumes are numerically superposed to create the three-dimensional tomographic image. Experiments were performed to demonstrate the idea.

[Indexed for MEDLINE]

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