Real-time phase-resolved functional optical coherence tomography by use of optical Hilbert transformation

被引:83
作者
Zhao, YH [1 ]
Chen, ZP
Ding, ZH
Ren, HW
Nelson, JS
机构
[1] Univ Calif Irvine, Beckmen Laser Inst, Irvine, CA 92612 USA
[2] Univ Calif Irvine, Biomed Engn Ctr, Irvine, CA 92612 USA
关键词
D O I
10.1364/OL.27.000098
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
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. (C) 2002 Optical Society of America.
引用
收藏
页码:98 / 100
页数:3
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