微分干涉相衬层析显微镜的研究

Investigate of differential contrast coherence tomography microscope

利用微分干涉相衬显微镜建立了全视场层析成像系统,由两个最佳峰值波长差的边缘辐射发光二极管组成系统的低相干光源,利用高斯平滑滤波摸板对硅-PIN阵列光探测器提取的全场光学相干层析(OCT)散斑信号进行有效控制,采用正交相关解调方法获得了纵向分辨率为5.5μm显微镜盖波片胶结载波片的三维OCT图像.

A novel optical coherence tomography experiment system using the differential interference contrast microscope is presented, whose low-coherence source is composed of the dual broadband light-emitting diodes by optimum wavelength combination. The full field optical coherence tomography （OCT） sigal was picked up by silicon detector chip with a two-dimensional array of pixels. The speckle noise of the OCT image was controlled by Gauss liner smoothing filter. A 5.5 μm longitudinal resolution OCT image of microscope carrier glass glue with a cover glass was achieved by cross correlation demodulating method.