Binary-phase spatial filter for real-time swept-source optical coherence microscopy
Binary-phase spatial filter for real-time swept-source optical coherence microscopy
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DOI：
10.1364/ol.32.002375
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发表时间：
2007-08-15
期刊：
影响因子：
3.6
通讯作者：
Chen, Nanguang
中科院分区：
文献类型：
--
作者：
Liu, Linbo;Liu, Cheng;Chen, Nanguang
我们提出了一种新的方案，以优化实时，扫频光源光学相干显微镜的聚焦条件。数值模拟了四区二元相位空间滤波器的轴向和横向特性，实验验证了在1.5 mm的扩展焦深上轴向光强分布沿着近似恒定，横向分辨率为5 μ m。A线扫描速率高达16 kHz，产生25 Hz的帧速率和每幅图像640线。(C)2007年，美国光学学会。
We report a novel scheme to optimize the focusing condition for real-time, swept-source optical coherence microscopy. The axial and lateral behaviors of four-zone binary-phase spatial filters are presented numerically A nearly constant axial intensity distribution along an extended depth of focus of 1.5 mm and a lateral resolution of 5 Am are experimentally verified. The A-line scan rate is up to 16 kHz, yielding a frame rate of 25 Hz and 640 lines per image. (C) 2007 Optical Society of America.