Hartmann-Shack wavefront sensing method and experiment of dual-wedge micro-scanning

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• 作者：Chenhao Ma^a ; Ping Gong^a ; ^{gongmch@126.com} ; Yuegang Fu^a ; Yan Sun^b ; Wenlian Ma^b ; Jiaxin Fu^c
• 关键词：Hartamnn-Shack sensor ; Micro-scanning ; Wavefront reconstruction ; Detection accuracy
• 刊名：Optik - International Journal for Light and Electron Optics
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：130
• 期：Complete
• 页码：338-344
• 全文大小：1134 K
• 卷排序：130

文摘

For large aperture complex optical wavefront sensing, the lenticule array of Hartmann-Shack wavefront sensor limits the sampling of the wavefront. Thus the accuracy of wavefront reconstruction is affected. In order to improve the sampling rate of wavefront, the detection method of micro-scanning technology which added in Hartmann-Shack wavefront sensing method is proposed. Based on the results of simulation analysis, the dual-wedge micro-scanning Hartmann sensor is designed. The experiment which 2 × 2 mode dual-wedge micro-scanning Hartmann-Shack sensor detects the wavefront of telescope optical system is set up. The experimental results are compared with the ZYGO interferometer. The results of dual-wedge micro-scanning Hartmann-Shack sensor are better than that of the traditional sensor. Conclusions show that the micro-scanning technology has a certain effect on the improvement of the wavefront reconstruction accuracy of Hartmann-Shack sensor.