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High-speed, high-sensitivity, gated surface profiling with closed-loop optical coherence topography

Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.14/111712

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Title: High-speed, high-sensitivity, gated surface profiling with closed-loop optical coherence topography
Related: Applied optics, Vol. 41, Issue 11 (2002), p.2179-2184
DOI: 10.1364/AO.41.002179
Publisher: Optical Society of America
Date: 2002
FoR/RFCD Code(s): 111300 Ophthalmology and Optometry 020500 Optical Physics
Author/Creator: Zvyagin, Andrei V
Author/Creator: Eix, Ilos
Author/Creator: Sampson, David D
Description: We describe and experimentally demonstrate a novel (to our knowledge) surface profiling technique, for which we propose the term closed-loop optical coherence topography. This technique is a scanning beam, servo-locked variation of low-coherence interferometry. It allows for the sub-wavelength-resolution tracking of a weakly scattering macroscopic-scale surface, with the surface profile being directly output by the controlling electronics. The absence of significant real-time computational overhead makes the technique well suited to high-speed tracking. The use of a micrometer-scale coherence gate efficiently suppresses signals arising from structures not associated with the surface. These features make the technique particularly well suited to real-time surface profiling of in vivo, macroscopic biological surfaces,
Description: 6 page(s)
Subject Keyword: 111300 Ophthalmology and Optometry
Subject Keyword: 020500 Optical Physics
Subject Keyword: interferometry
Subject Keyword: tomography
Resource Type: journal article
Organisation: Macquarie University. Dept. of Physics and Astronomy

Identifier: http://hdl.handle.net/1959.14/111712
Identifier: ISSN:0003-6935
Identifier: mq-rm-2010001902
Language: eng
Rights: This paper was published in [Applied optics] and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: [http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-41-11-2179]. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
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