Aberration characterization for the optimal design of high-resolution endoscopic optical coherence tomography catheters.
Opt Lett
; 37(6): 1100-2, 2012 Mar 15.
Article
in En
| MEDLINE
| ID: mdl-22446238
ABSTRACT
We study the major factors causing degradation in the lateral resolution of gradient-index-lens-based catheters used for high-resolution optical coherence tomography. Chromatic aberration and astigmatism were taken into account in the propagation of broadband single-mode Gaussian beams through the catheter geometry. It was found that, while chromatic aberration did not preclude achieving high resolution, astigmatism posed a major technical difficulty, because its correction requires a very sensitive adjustment of parameters, especially for catheters with long working distances.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Tomography, Optical Coherence
/
Endoscopy
/
Optical Phenomena
/
Catheters
Language:
En
Journal:
Opt Lett
Year:
2012
Document type:
Article
Affiliation country:
United States