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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 32, Iss. 21 — Nov. 1, 2007
  • pp: 3158–3160

Backscattering spectroscopic contrast with angle-resolved optical coherence tomography

Adrien E. Desjardins, Benjamin J. Vakoc, Guillermo J. Tearney, and Brett E. Bouma  »View Author Affiliations


Optics Letters, Vol. 32, Issue 21, pp. 3158-3160 (2007)
http://dx.doi.org/10.1364/OL.32.003158


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Abstract

Backscattering spectroscopic contrast using angle-resolved optical coherence tomography is demonstrated as a powerful method for determining scatterer diameter with subwavelength resolution. By applying spectroscopic digital processing algorithms to interferograms acquired in the frequency domain with a wavelength-swept laser centered at 1295 nm , it was shown that differences in wavelength-dependent backscattering from 0.3 and 1 μ m diameter microspheres can be clearly resolved. The observed backscattering spectra were found to be consistent with Mie theory. High levels of speckle noise reduction achieved by angular compounding increased the spatial resolution at which backscattering spectra could be accurately differentiated.

© 2007 Optical Society of America

OCIS Codes
(120.3890) Instrumentation, measurement, and metrology : Medical optics instrumentation
(170.3880) Medical optics and biotechnology : Medical and biological imaging
(170.4500) Medical optics and biotechnology : Optical coherence tomography

ToC Category:
Medical Optics and Biotechnology

History
Original Manuscript: June 5, 2007
Manuscript Accepted: July 2, 2007
Published: October 24, 2007

Virtual Issues
Vol. 2, Iss. 12 Virtual Journal for Biomedical Optics

Citation
Adrien E. Desjardins, Benjamin J. Vakoc, Guillermo J. Tearney, and Brett E. Bouma, "Backscattering spectroscopic contrast with angle-resolved optical coherence tomography," Opt. Lett. 32, 3158-3160 (2007)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-32-21-3158

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