Wavefront sensing based on phase contrast theory and coherent optical processing

被引：0

作者：

黄磊

边琪

周晨露

李腾浩

巩马理

机构：

[1] CenterforPhotonicsandElectronics,DepartmentofPrecisionInstruments,TsinghuaUniversity

来源：

Chinese Physics B | 2016年 / 25卷 / 07期

关键词：

wavefront gradients; composite sinusoidal gratings; phase contrast;

D O I：

暂无

中图分类号：

TP212 [发送器（变换器）、传感器];

学科分类号：

080202 ;

摘要：

A novel wavefront sensing method based on phase contrast theory and coherent optical processing is proposed. The wavefront gradient field in the object plane is modulated into intensity distribution in a gang of patterns, making highdensity detection available. By applying the method, we have also designed a wavefront sensor. It consists of a classical coherent optical processing system, a CCD detector array, two pieces of orthogonal composite sinusoidal gratings, and a mechanical structure that can perform real-time linear positioning. The simulation results prove and demonstrate the validity of the method and the sensor in high-precision measurement of the wavefront gradient field.

引用

页码：183 / 188

页数：6

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