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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 17 — Aug. 20, 2007
  • pp: 10832–10841

Optics InfoBase > Optics Express > Volume 15 > Issue 17 > Page 10832

Simultaneous dual-band ultra-high resolution optical coherence tomography

Felix Spöler, Stefan Kray, Patrik Grychtol, Barbara Hermes, Jörg Bornemann, Michael Först, and Heinrich Kurz  »View Author Affiliations


Optics Express, Vol. 15, Issue 17, pp. 10832-10841 (2007)
http://dx.doi.org/10.1364/OE.15.010832


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Abstract

Ultra-high resolution optical coherence tomography (OCT) imaging is demonstrated simultaneously at 840 nm and 1230 nm central wavelength using an off-the-shelf turn-key supercontinuum light source. Spectral filtering of the light source emission results in a double peak spectrum with average powers exceeding 100 mW and bandwidths exceeding 200 nm for each wavelength band. A free-space OCT setup optimized to support both wavelengths in parallel is introduced. OCT imaging of biological tissue ex vivo and in vivo is demonstrated with axial resolutions measured to be <2 µm and <4 µm at 840 nm and 1230 nm, respectively. This measuring scheme is used to extract spectroscopic features with outstanding spatial resolution enabling enhanced image contrast.

© 2007 Optical Society of America

OCIS Codes
(110.4500) Imaging systems : Optical coherence tomography
(170.3880) Medical optics and biotechnology : Medical and biological imaging
(170.4580) Medical optics and biotechnology : Optical diagnostics for medicine
(170.6510) Medical optics and biotechnology : Spectroscopy, tissue diagnostics

ToC Category:
Medical Optics and Biotechnology

History
Original Manuscript: July 9, 2007
Revised Manuscript: August 8, 2007
Manuscript Accepted: August 9, 2007
Published: August 13, 2007

Virtual Issues
Vol. 2, Iss. 9 Virtual Journal for Biomedical Optics

Citation
Felix Spöler, Stefan Kray, Patrik Grychtol, Barbara Hermes, Jörg Bornemann, Michael Först, and Heinrich Kurz, "Simultaneous dual-band ultra-high resolution optical coherence tomography," Opt. Express 15, 10832-10841 (2007)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-15-17-10832


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