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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 7, Iss. 12 — Dec. 19, 2012

Ultralong-range phase imaging with orthogonal dispersive spectral-domain optical coherence tomography

Chuan Wang, Zhihua Ding, Shengtao Mei, Hang Yu, Wei Hong, Yangzhi Yan, and Weidong Shen  »View Author Affiliations


Optics Letters, Vol. 37, Issue 21, pp. 4555-4557 (2012)
http://dx.doi.org/10.1364/OL.37.004555


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Abstract

An orthogonal dispersive spectral-domain optical coherence tomography (SDOCT) system based on a spectrometer consisting of a high spectral resolution virtually-imaged phased array (VIPA) and a low resolution diffraction grating is developed. Two-dimensional (2D) dispersion generated by the combination of the VIPA and the grating in conjunction with a 2D CCD leads to an improved performance of the spectrometer. Ultrahigh spectral resolution of 0.002 nm within a free spectrum range of 50 nm is realized, providing the spectrometer with a spectral sampling rate up to 105. The developed SDOCT realizes an imaging depth over 80 mm, which is the longest depth range ever achieved by SDOCT. The increased spectral sampling rate also results in a high signal-to-noise ratio of the SDOCT system. The application of the developed system is further illustrated by quantitative phase imaging of a glass plate and an optical lens.

© 2012 Optical Society of America

OCIS Codes
(110.1650) Imaging systems : Coherence imaging
(170.4500) Medical optics and biotechnology : Optical coherence tomography

ToC Category:
Medical Optics and Biotechnology

History
Original Manuscript: July 18, 2012
Revised Manuscript: September 22, 2012
Manuscript Accepted: October 1, 2012
Published: October 31, 2012

Virtual Issues
Vol. 7, Iss. 12 Virtual Journal for Biomedical Optics

Citation
Chuan Wang, Zhihua Ding, Shengtao Mei, Hang Yu, Wei Hong, Yangzhi Yan, and Weidong Shen, "Ultralong-range phase imaging with orthogonal dispersive spectral-domain optical coherence tomography," Opt. Lett. 37, 4555-4557 (2012)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ol-37-21-4555

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