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Appl Opt. 2006 Mar 10;45(8):1861-5.

Simultaneous B-M-mode scanning method for real-time full-range Fourier domain optical coherence tomography.

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Institute of Applied Physics, University of Tsukuba, Tennodai 1-1-1, Ibaraki, Tsukuba 305-8573, Japan.


High-speed complex full-range Fourier domain optical coherence tomography (FD-OCT) is demonstrated. In this FD-OCT, the phase modulation of a reference beam (M scan) and transversal scanning (B scan) are simultaneously performed. The Fourier transform method is applied along the direction of the B scan to reconstruct complex spectra, and the complex spectra comprise a full-range OCT image. Because of this simultaneous B-M-mode scan, the FD-OCT requires only a single A scan for each single transversal position to obtain a full-range FD-OCT image. A simple but slow version of the FD-OCT visualizes the cross section of a plastic plate. A modified fast version of this FD-OCT investigates a sweat duct in a finger pad in vivo and visualizes it with an acquisition time of 27 ms.

[Indexed for MEDLINE]

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