Share Email Print
cover

Proceedings Paper

Low-coherence photorefractive holography for high-speed 3D imaging including through scattering media
Author(s): Christopher W. Dunsby; Y. Gu; Zunaira Ansari; Duncan Parsons-Karavassilis; Jan Siegel; Masahide Itoh; S. Iwamoto; William Robert Headley; Michael R. Melloch; David D. Nolte; Paul M. W. French
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Low coherence photorefractive holography is a wide-field technique for 3-D imaging that offers a unique mechanism to discriminate against a background of diffuse light. This provides a wide-field method to image through scattering materials that we have demonstrated may be implemented at frame rates as high as ~ 470/second. We present our recently developed low coherence photorefractive microscope and demonstrate how it may be realized using a spatially coherent broadband c.w. diode-pumped solid-state laser. This can provide real-time sectioned images of moving 3-D objects using only a simple uncooled 8-bit CCD camera. We also demonstrate a photorefractive 3-D imaging technique that exploits structured illumination and photorefractive holography to achieve a real-time wide-field sectioning microscope that may be applied to fluorescence, as well as reflected light. We also discuss issues for improving the sensitivity and spectral coverage of photorefractive holography using semi-insulating MQW devices.

Paper Details

Date Published: 14 June 2002
PDF: 9 pages
Proc. SPIE 4619, Coherence Domain Optical Methods in Biomedical Science and Clinical Applications VI, (14 June 2002); doi: 10.1117/12.470469
Show Author Affiliations
Christopher W. Dunsby, Imperial College of Science, Technology, and Medicine (United Kingdom)
Y. Gu, Imperial College of Science, Technology, and Medicine (United Kingdom)
Zunaira Ansari, Imperial College of Science, Technology, and Medicine (United Kingdom)
Duncan Parsons-Karavassilis, Imperial College of Science, Technology, and Medicine (United Kingdom)
Jan Siegel, Imperial College of Science, Technology, and Medicine (United Kingdom)
Masahide Itoh, Imperial College of Science, Technology, and Medicine (United Kingdom)
S. Iwamoto, Imperial College of Science, Technology, and Medicine (United Kingdom)
William Robert Headley, Purdue Univ. (United States)
Michael R. Melloch, Purdue Univ. (United States)
David D. Nolte, Purdue Univ. (United States)
Paul M. W. French, Imperial College of Science, Technology, and Medicine (United Kingdom)


Published in SPIE Proceedings Vol. 4619:
Coherence Domain Optical Methods in Biomedical Science and Clinical Applications VI
Valery V. Tuchin; Joseph A. Izatt; James G. Fujimoto, Editor(s)

© SPIE. Terms of Use
Back to Top