Non-harmonic analysis for high-resolution optical coherence tomography

Changho Chong; Xu Cao; Atsushi Morosawa; Koki Totsuka; Takuya Suzuki; Shigeki Hirobayashi

doi:10.1117/12.842886

19 February 2010 Non-harmonic analysis for high-resolution optical coherence tomography

Changho Chong, Xu Cao, Atsushi Morosawa, Koki Totsuka, Takuya Suzuki, Shigeki Hirobayashi

Proceedings Volume 7554, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XIV; 75541V (2010) https://doi.org/10.1117/12.842886
Event: SPIE BiOS, 2010, San Francisco, California, United States

Abstract

A novel processing technique called Non-Harmonic Analysis (NHA) is proposed for high-resolution OCT imaging. Conventional Fourier-Domain OCT relies on the FFT calculation which depends on the window function and length. NHA can resolve high frequency without being influenced by window function or frame length of sampled data. The results show that NHA process realizes practical image resolution equivalent to 100nm swept range by using significantly reduced wavelength range, and also implies the potential of high resolution imaging capability without the need of a broadband source.

Citation Download Citation

Changho Chong, Xu Cao, Atsushi Morosawa, Koki Totsuka, Takuya Suzuki, and Shigeki Hirobayashi "Non-harmonic analysis for high-resolution optical coherence tomography", Proc. SPIE 7554, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XIV, 75541V (19 February 2010); https://doi.org/10.1117/12.842886

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