High-speed 3D imaging using photorefractive holography

Yan Gu; Zunaira Ansari; Duncan Parsons-Karavassilis; Paul M. W. French; David D. Nolte; Michael R. Melloch

doi:10.1117/12.424903

13 April 2001 High-speed 3D imaging using photorefractive holography

Yan Gu, Zunaira Ansari, Duncan Parsons-Karavassilis, Paul M. W. French, David D. Nolte, Michael R. Melloch

Proceedings Volume 4298, Three-Dimensional Image Capture and Applications IV; (2001) https://doi.org/10.1117/12.424903
Event: Photonics West 2001 - Electronic Imaging, 2001, San Jose, CA, United States

Abstract

We present a rapid whole-field, 3-D imaging technique based on low coherence interferometry using photorefractive holography in semi-insulating Multiple Quantum Well (MQW) devices, which is capable of whole-field depth resolved 3-D imaging at frame rates exceeding 475 fps. Photorefractive holography provides a unique mechanism to discriminate against a diffuse light background, making it attractive for imaging through turbid media, e.g. for biomedical applications. We note that this whole-field technique can exploit sources of almost arbitrary spatial coherence, including LED's, fibre-coupled laser diode arrays, broadband c.w. lasers etc, as well as ultrafast laser pulses. The use of spatially incoherent light greatly reduces the deleterious impact of speckle.

Citation Download Citation

Yan Gu, Zunaira Ansari, Duncan Parsons-Karavassilis, Paul M. W. French, David D. Nolte, and Michael R. Melloch "High-speed 3D imaging using photorefractive holography", Proc. SPIE 4298, Three-Dimensional Image Capture and Applications IV, (13 April 2001); https://doi.org/10.1117/12.424903

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