Share Email Print

Proceedings Paper

A 5mm catheter for constant resolution probing in Fourier domain optical coherence endoscopy
Author(s): Kye-Sung Lee; Lei Wu; Huikai Xie; Olusegun Ilegbusi; Marco Costa; Jannick P. Rolland
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

A 5mm biophotonic catheter was conceived for optical coherence tomography (OCT) with collimation optics, an axicon lens, and custom design imaging optics, yielding a 360 degree scan aimed at imaging within concave structures such as lung lobes. In OCT a large depth of focus is necessary to image a thick sample with a constant high transverse resolution. There are two approaches to achieving constant lateral resolution in OCT: Dynamic focusing or Bessel beam forming. This paper focuses on imaging with Bessel beams. A Bessel beam can be generated in the sample arm of the OCT interferometer when axicon optics is employed instead of a conventional focusing lens. We present a design for a 5mm catheter that combines an axicon lens with imaging optics and the coupling of a MEMS mirror attached to a micromotor that allow 360 degree scanning with a resolution of about 5 microns across a depth of focus of about 1.2mm.

Paper Details

Date Published: 12 February 2007
PDF: 8 pages
Proc. SPIE 6432, Endoscopic Microscopy II, 64320B (12 February 2007); doi: 10.1117/12.711122
Show Author Affiliations
Kye-Sung Lee, College of Optics and Photonics, Univ. of Central Florida (United States)
Lei Wu, Univ. of Florida (United States)
Huikai Xie, Univ. of Florida (United States)
Olusegun Ilegbusi, Univ. of Central Florida (United States)
Marco Costa, Univ. of Florida Health Sciences Ctr. (United States)
Jannick P. Rolland, College of Optics and Photonics, Univ. of Central Florida (United States)

Published in SPIE Proceedings Vol. 6432:
Endoscopic Microscopy II
Guillermo J. Tearney M.D.; Thomas D. Wang, Editor(s)

© SPIE. Terms of Use
Back to Top