1 October 2007 Dynamic full-range Fourier-domain optical coherence tomography using sinusoidal phase-modulating interferometry
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Optical Engineering, 46(10), 105603 (2007). doi:10.1117/1.2798540
Abstract
We propose a technique for dynamic full-range Fourier-domain optical coherence tomography by using sinusoidal phase-modulating interferometry, where both the full-range structural information and depth-resolved dynamic information are obtained. A novel frequency-domain filtering algorithm is proposed to reconstruct a time-dependent complex spectral interferogram from the sinusoidally phase-modulated interferogram detected with a high-rate CCD camera. By taking the amplitude and phase of the inverse Fourier transform of the complex spectral interferogram, a time-dependent full-range cross-sectional image and depth-resolved displacement are obtained. Displacement of a sinusoidally vibrating glass cover slip behind a fixed glass cover slip is measured with subwavelength sensitivity to demonstrate the depth-resolved dynamic imaging capability of our system.
Peng Bu, Xiangzhao Wang, Osami Sasaki, "Dynamic full-range Fourier-domain optical coherence tomography using sinusoidal phase-modulating interferometry," Optical Engineering 46(10), 105603 (1 October 2007). http://dx.doi.org/10.1117/1.2798540
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KEYWORDS
Interfaces

Interferometry

Optical coherence tomography

Phase interferometry

CCD cameras

Glasses

Imaging systems

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