Comparative study of confocal and heterodyne microscopy for imaging through scattering media
Comparative study of confocal and heterodyne microscopy for imaging through scattering media
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共焦和外差显微镜通过散射介质成像的比较研究
DOI：
10.1364/josaa.13.000046
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发表时间：
1996
影响因子：
1.9
通讯作者：
E. Welsch
中科院分区：
文献类型：
--
作者：
M. Kempe;W. Rudolph;E. Welsch
我们研究了共聚焦显微镜在散射层成像时的局限性，并将其与相关（外差）显微镜的性能进行了比较。共聚焦激光扫描显微镜显示，由于空间滤波的信号从样品的反反射，使成像通过散射介质成为可能。它的性能受到检测系统噪声和/或散射光抑制不足的限制，这取决于所调查的样品。窄带或宽带光的相关显微镜可以通过选择性的光学放大图像信息来扩展这些限制。
We investigate limits of the confocal microscope when applied to imaging through scattering layers and compare its performance with that of a correlation (heterodyne) microscope. Confocal laser scanning microscopy is shown to make possible imaging through scattering media owing to the spatial filtering of the signal back-reflected from the sample. Its performance is limited by the noise of the detection system and/or insufficient rejection of scattered light, depending on the sample under investigation. Correlation microscopy with narrow or broad bandwidth light can extend these limits by selective, optical amplification of the image information.