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Proceedings Paper

An approach for megahertz OCT: streak mode Fourier domain optical coherence tomography
Author(s): Rui Wang; Julie X. Yun; Xiaocong Yuan; Richard Goodwin; Roger Markwald; Bruce Gao
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Paper Abstract

We report a technique, which uses an area-scan camera to record the interference spectrum. Traditional point-scanning is remained in this streak-mode FDOCT so that the small aperture of the single-mode fiber functions as a confocal gate and screens multiply scattered photons very well. While the sample beam is scanning the specimen laterally, the interference spectrum is physically scanned on the area scan camera using a streak scanner. Therefore, pixels of the camera are illuminated by the spectrum of OCT signal row by row, corresponding to each A-scan at different lateral position. A unidirectional B-scan of 700 lines is obtained in 1 ms; thus, an A-scan time of 1.4 μs is achieved. A Day 4 chick embryo sampled is imaged using this method. This technique is highly potential for multi-Megahertz OCT imaging.

Paper Details

Date Published: 8 March 2011
PDF: 5 pages
Proc. SPIE 7889, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XV, 788920 (8 March 2011); doi: 10.1117/12.875384
Show Author Affiliations
Rui Wang, Clemson Univ. (United States)
Julie X. Yun, Clemson Univ. (United States)
Xiaocong Yuan, Nankai Univ. (China)
Richard Goodwin, Univ. of South Carolina (United States)
Roger Markwald, Medical Univ. of South Carolina (United States)
Bruce Gao, Clemson Univ. (United States)

Published in SPIE Proceedings Vol. 7889:
Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XV
James G. Fujimoto; Joseph A. Izatt; Valery V. Tuchin, Editor(s)

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