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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 2 — Jan. 23, 2006
  • pp: 726–735

Ultrahigh-resolution full-field optical coherence microscopy using InGaAs camera

W. Y. Oh, B. E. Bouma, N. Iftimia, S. H. Yun, R. Yelin, and G. J. Tearney  »View Author Affiliations


Optics Express, Vol. 14, Issue 2, pp. 726-735 (2006)
http://dx.doi.org/10.1364/OPEX.14.000726


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Abstract

Full-field optical coherence microscopy (FFOCM) is an interferometric technique for obtaining wide-field microscopic images deep within scattering biological samples. FFOCM has primarily been implemented in the 0.8 μm wavelength range with silicon-based cameras, which may limit penetration when imaging human tissue. In this paper, we demonstrate FFOCM at the wavelength range of 0.9 - 1.4 μm, where optical penetration into tissue is presumably greater owing to decreased scattering. Our FFOCM system, comprising a broadband spatially incoherent light source, a Linnik interferometer, and an InGaAs area scan camera, provided a detection sensitivity of 86 dB for a 2 sec imaging time and an axial resolution of 1.9 μm in water. Images of phantoms, tissue samples, and Xenopus Laevis embryos were obtained using InGaAs and silicon camera FFOCM systems, demonstrating enhanced imaging penetration at longer wavelengths.

© 2006 Optical Society of America

OCIS Codes
(170.3880) Medical optics and biotechnology : Medical and biological imaging
(170.3890) Medical optics and biotechnology : Medical optics instrumentation
(170.4500) Medical optics and biotechnology : Optical coherence tomography
(180.3170) Microscopy : Interference microscopy

ToC Category:
Medical Optics and Biotechnology

Virtual Issues
Vol. 1, Iss. 2 Virtual Journal for Biomedical Optics

Citation
W. Y. Oh, B. E. Bouma, N. Iftimia, S. H. Yun, R. Yelin, and G. J. Tearney, "Ultrahigh-resolution full-field optical coherence microscopy using InGaAs camera," Opt. Express 14, 726-735 (2006)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-14-2-726


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