Numerical Compensation of Dispersion Mismatch in Discretely Swept Optical-Frequency-Domain-Reflectometry Optical Coherence Tomography
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概要
- 論文の詳細を見る
We propose a numerical method to compensate dispersion mismatch in optical coherence tomography (OCT) based on optical-frequency-domain reflectyometry (OFDR). Dispersion mismatch causes phase distortion in interferograms depending on wavelength and results in a loss of resolution. We introduce a method to perform the numerical compensation directly to experimental interferograms in real space. Experimental tests are performed for the case of the Mach–Zehnder type OFDR-OCT using a super-structured-grating distributed-Bragg-reflector (SSG-DBR) laser, in which the wavenumber of the optical source is swept discretely by equal interval. It is shown that the method is effective to improve images for layered transparency sheets. We also apply the method to OFDR-OCT imaging of a human nail.
- 2006-07-15
著者
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Hiro-oka Hideaki
Center For Natural Science Kitasato University
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Shimizu Kimiya
Deparment Of Ophthalmology Kitasato University School Of Medicine
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OHBAYASHI Kohji
Graduate School of Medical Science, Kitasato University
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Furukawa Hiroyuki
Center For Natural Science Kitasato University
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Amano Takuji
Center For Natural Science Kitasato University
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Choi Donghak
Center For Natural Science Kitasato University
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Kano Fumiyoshi
Ntt Photonics Laboratories Ntt Corporation
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Nakanishi Motoi
Deparment Of Ophthalmology Kitasato University School Of Medicine
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Hiro-Oka Hideaki
Center for Natural Science, Kitasato University, Sagamihara, Kanagawa 228-8555, Japan
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Kano Fumiyoshi
NTT Photonics Laboratories, NTT Corporation, Atsugi, Kanagawa 243-0198, Japan
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Choi Donghak
Center for Natural Science, Kitasato University, Sagamihara, Kanagawa 228-8555, Japan
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Amano Takuji
Center for Natural Science, Kitasato University, Sagamihara, Kanagawa 228-8555, Japan
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Furukawa Hiroyuki
Center for Natural Science, Kitasato University, Sagamihara, Kanagawa 228-8555, Japan
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