中国物理B ›› 2016, Vol. 25 ›› Issue (7): 70701-070701.doi: 10.1088/1674-1056/25/7/070701
Lei Huang(黄磊), Qi Bian(边琪), Chenlu Zhou(周晨露), Tenghao Li(李腾浩), Mali Gong(巩马理)
Lei Huang(黄磊), Qi Bian(边琪), Chenlu Zhou(周晨露), Tenghao Li(李腾浩), Mali Gong(巩马理)
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 high-density 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.
中图分类号: (Sensors (chemical, optical, electrical, movement, gas, etc.); remote sensing)