Laterally super-resolving optical coherence tomography by intentional defocus and numerical compensation

Yoshiaki Yasuno; Jun-ichiro Sugisaka; Yusuke Sando; Shuichi Makita; Takashi Endo; Masahide Itoh; Toyohiko Yatagai

doi:10.1117/12.632968

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7 October 2005 Laterally oranges super-resolving optical coherence tomography by intentional defocus and numerical compensation

Yoshiaki Yasuno, Jun-ichiro Sugisaka, Yusuke Sando, Shuichi Makita, Takashi Endo, Masahide Itoh, Toyohiko Yatagai

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Proceedings Volume 5861, Optical Coherence Tomography and Coherence Techniques II; 58610A (2005) https://doi.org/10.1117/12.632968
Event: European Conferences on Biomedical Optics 2005, 2005, Munich, Germany

Abstract

A method of lateral superresolution for Fourier domain optical coherence tomography is presented. This method consists of intentional defocus and its numerical compensation using a spatial frequency- phase filter. The designing process of the phase filter is described, and the superresolution effect is discussed theoretically. Experimental results of knife-edge test prove that the frequency filter enhances the lateral resolution better than a trans-form limited resolution.

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Yoshiaki Yasuno, Jun-ichiro Sugisaka, Yusuke Sando, Shuichi Makita, Takashi Endo, Masahide Itoh, and Toyohiko Yatagai "Laterally oranges super-resolving optical coherence tomography by intentional defocus and numerical compensation", Proc. SPIE 5861, Optical Coherence Tomography and Coherence Techniques II, 58610A (7 October 2005); https://doi.org/10.1117/12.632968

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