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Proceedings Article

An approach for megahertz OCT: streak mode Fourier domain optical coherence tomography

[+] Author Affiliations
Rui Wang, Julie X. Yun, Bruce Gao

Clemson Univ. (USA)

Xiaocong Yuan

Nankai Univ. (China)

Richard Goodwin

Univ. of South Carolina (USA)

Roger Markwald

Medical Univ. of South Carolina (USA)

Proc. SPIE 7889, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XV, 788920 (March 08, 2011); doi:10.1117/12.875384
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From Conference Volume 7889

  • Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XV
  • James G. Fujimoto; Joseph A. Izatt; Valery V. Tuchin
  • San Francisco, California, USA | January 22, 2011

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.

© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

Rui Wang ; Julie X. Yun ; Xiaocong Yuan ; Richard Goodwin ; Roger Markwald, et al.
"An approach for megahertz OCT: streak mode Fourier domain optical coherence tomography", Proc. SPIE 7889, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XV, 788920 (March 08, 2011); doi:10.1117/12.875384; http://dx.doi.org/10.1117/12.875384


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