Real-time phase-resolved functional optical coherence tomography by use of optical Hilbert transformation
Open Access
- 15 January 2002
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 27 (2) , 98-100
- https://doi.org/10.1364/ol.27.000098
Abstract
We have developed a novel real-time phase-resolved functional optical coherence tomography system that uses optical Hilbert transformation. When we use a resonant scanner in the reference arm of the interferometer, with an axial scanning speed of 4 kHz, the frame rate of both structural and Doppler blood-flow imaging with a size of 100 by 100 pixels is 10 Hz. The system has high sensitivity and a larger dynamic range for measuring the Doppler frequency shift that is due to moving red blood cells. Real-time images of in vivo blood flow in human skin obtained with this interferometer are presented.Keywords
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