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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 31, Iss. 9 — May. 1, 2006
  • pp: 1265–1267

Paired-angle-rotation scanning optical coherence tomography forward-imaging probe

Jigang Wu, Michael Conry, Chunhui Gu, Fei Wang, Zahid Yaqoob, and Changhuei Yang  »View Author Affiliations


Optics Letters, Vol. 31, Issue 9, pp. 1265-1267 (2006)
http://dx.doi.org/10.1364/OL.31.001265


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Abstract

We report a novel forward-imaging optical coherence tomography (OCT), needle-probe paired-angle-rotation scanning OCT (PARS-OCT) probe. The probe uses two rotating angled gradient-index lenses to scan the output OCT probe beam over a wide angular arc ( 19 ° half-angle) of the region forward of the probe. Among other advantages, this probe design is readily amenable to miniaturization and is capable of a variety of scan modes, including volumetric scans. To demonstrate the advantages of the probe design, we have constructed a prototype probe with an outer diameter of 1.65 mm and employed it to acquire four OCT images, with a 45° angle between adjacent images, of the gill structure of a Xenopus laevis tadpole. The system sensitivity was measured to be 93 dB by using the prototype probe with an illumination power of 450 μ W on the sample. Moreover, the axial and the lateral resolutions of the probe are 9.3 and 10.3 12.5 μ m , respectively.

© 2006 Optical Society of America

OCIS Codes
(110.2350) Imaging systems : Fiber optics imaging
(120.3890) Instrumentation, measurement, and metrology : Medical optics instrumentation
(120.5800) Instrumentation, measurement, and metrology : Scanners
(170.2150) Medical optics and biotechnology : Endoscopic imaging
(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: December 22, 2005
Manuscript Accepted: January 31, 2006

Virtual Issues
Vol. 1, Iss. 6 Virtual Journal for Biomedical Optics

Citation
Jigang Wu, Michael Conry, Chunhui Gu, Fei Wang, Zahid Yaqoob, and Changhuei Yang, "Paired-angle-rotation scanning optical coherence tomography forward-imaging probe," Opt. Lett. 31, 1265-1267 (2006)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-31-9-1265


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