Selective imaging with a frequency-modulated laser-diode interferometer.
Selective imaging with a frequency-modulated laser-diode interferometer.
复制标题
使用调频激光二极管干涉仪进行选择性成像。
DOI：
10.1364/ol.20.000761
复制
发表时间：
1995
期刊：
影响因子：
3.6
通讯作者：
Y. Ishii
中科院分区：
文献类型：
--
作者：
R. Onodera;Y. Ishii
它示出了从多个干涉图的图像的选择性提取可以通过干涉拍频信号的电子处理来执行。在LD干涉仪中，通过斜升激光二极管（LD）电流产生的拍频信号的频率与参考臂和物臂之间的光程差成比例。可以通过电子调谐来提取具有对应于对象分配的干涉仪臂的频率的拍频信号。由解剖相机检测到的干涉图案与拍频信号同步采样，这允许二维选择性成像。
It is shown that selective extraction of an image from multiple interferograms can be performed by electronic processing of interference beat signals. The frequencies of beat signals generated by ramping the laser-diode (LD) current are proportional to the optical path differences between the reference and the object arms in a LD interferometer. A beat signal with a frequency corresponding to an object-assigned interferometric arm can be extracted by electronic tuning. An interference pattern detected by a dissector camera is sampled in synchronism with the beat signal, which permits two-dimensional selective imaging.