Aberration characterization for the optimal design of high-resolution endoscopic optical coherence tomography catheters
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- Aberration characterization for the optimal design of high-resolution endoscopic optical coherence tomography catheters
- Benalcazar, Wladimir A.; Jung, Woonggyu; Boppart, Stephen A.
- Chromatic aberration; Endoscopic optical coherence tomography; High resolution; Lateral resolution; Major factors; Optimal design; Single mode; Technical difficulties; Working distances
- Issue Date
- OPTICAL SOC AMER
- OPTICS LETTERS, v.37, no.6, pp.1100 - 1102
- 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. (C) 2012 Optical Society of America.
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