Share Email Print
cover

Proceedings Paper

Wide-field coherence gated imaging: photorefractive holography and wide-field coherent heterodyne imaging
Author(s): Christopher W. Dunsby; Yan Gu; David D. Nolte; Michael R. Melloch; Paul M. W. French
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

We present a characterization of high-speed wide-field coherence-gated imaging using photorefractive holography with GaAs/AlGaAs Photorefractive Multiple Quantum Well (PRWQ) devices. Results are obtained with broadband c.w. laser illumination. The limitations of photorefractive holography using PRQW devices in our non-degenerate four-wave mixing geometry are discussed in terms of typical PRQW device parameters. We discuss the effect of the sensitivity and dynamic range of the CCD camera used to record the diffracted image and how the performance of PRQW devices may be improved in the future. We also present a spatial multiplexing technique for achieving phase-stepped single-shot wide-field coherence-gated imaging using a single CCD camera.

Paper Details

Date Published: 8 July 2003
PDF: 8 pages
Proc. SPIE 4956, Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine VII, (8 July 2003); doi: 10.1117/12.478993
Show Author Affiliations
Christopher W. Dunsby, Imperial College of Science, Technology and Medicine (United Kingdom)
Yan Gu, Imperial College of Science, Technology and Medicine (United Kingdom)
David D. Nolte, Purdue Univ. (United States)
Michael R. Melloch, Purdue Univ. (United States)
Paul M. W. French, Imperial College of Science, Technology and Medicine (United Kingdom)


Published in SPIE Proceedings Vol. 4956:
Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine VII
Valery V. Tuchin; Joseph A. Izatt; James G. Fujimoto, Editor(s)

© SPIE. Terms of Use
Back to Top