Far-infrared Fizeau interferometer for large aspheric mirror | |
Wu Yongqian; Zhang Yudong | |
Volume | 7281 |
2009 | |
Language | 英语 |
Indexed By | Ei |
Subtype | 会议论文 |
Abstract | The design and system performance of a far-infrared interferometer with which to test rough aspheric surfaces are presented. It is based on the optical configuration of classical Fizeau interferometer. A CO2 laser is used as a light source operating at a 10.6μm wavelength. A He-Ne laser is introduced into the interferometer to solve problems concerning with alignment. The measuring error(RMS) of the interferometer is less than λ/200 (λ=10.6μm), this accuracy is able to fulfill the need of grinding primary mirror.; The design and system performance of a far-infrared interferometer with which to test rough aspheric surfaces are presented. It is based on the optical configuration of classical Fizeau interferometer. A CO2 laser is used as a light source operating at a 10.6μm wavelength. A He-Ne laser is introduced into the interferometer to solve problems concerning with alignment. The measuring error(RMS) of the interferometer is less than λ/200 (λ=10.6μm), this accuracy is able to fulfill the need of grinding primary mirror. |
Conference Name | Proceedings of SPIE 2009 Symposium on Photonics and Optoelectronics Large Mirrors and Telescopes |
Conference Date | 2009 |
Document Type | 会议论文 |
Identifier | http://ir.ioe.ac.cn/handle/181551/7557 |
Collection | 先光中心 |
Corresponding Author | Wu Yongqian |
Affiliation | 中国科学院光电技术研究所 |
Recommended Citation GB/T 7714 | Wu Yongqian,Zhang Yudong. Far-infrared Fizeau interferometer for large aspheric mirror[C],2009. |
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2009-150.pdf(412KB) | 会议论文 | 开放获取 | CC BY-NC-SA | Application Full Text |
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