Self-compensating effect analysis in testing asphere with computer-generated hologram

被引：0

作者：

Gao, Songtao ^{[1
]}

Wu, Dongcheng ^{[1
]}

Peng, Shijun ^{[1
]}

Su, Dongqi ^{[1
]}

Miao, Erlong ^{[1
]}

机构：

[1] State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, 130033, Jilin

来源：

Guangxue Xuebao/Acta Optica Sinica | 2015年 / 35卷 / 11期

关键词：

Asphere testing; Computer-generated hologram(CGH); Holography; Self-compensating effect;

D O I：

10.3788/AOS201535.1112002

中图分类号：

学科分类号：

摘要：

Besides null computer-generated hologram (CGH), the alignment CGH is usually designed for aligning the position of CGH through interferogram precisely when testing asphere with CGH. The compensating effect between null CGH and alignment CGH for the CGH which contains null CGH and alignment CGH simultaneously is presented. Four types of CGHs are designed for a high order asphere, and the compensating effects between the null CGH and alignment CGH are analyzed respectively. The results show that the configuration which has selfcompensating effect suffers less than 1/40 power error, and 1/70 spherical and high order spherical error compared to other configurations. A CGH is fabricated based on the configuration which has self-compensating effect, and thereby, the aspheric fabricating and testing are accomplished iteratively. The final testing results show that the aspheric surface figure converges at 0.48 nm root mean square (RMS). © 2015, Chinese Laser Press. All right reserved.

引用

页数：6

共 16 条

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