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Solar adaptive optics system using an electromagnetic deformable mirror |
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| Authors: | Noriaki Miura Yuuki Noto Shuusuke Kato Fumihito Yokoyama Susumu Kuwamura Naoshi Baba Yoichiro Hanaoka Shin’ichi Nagata Satoru Ueno Reizaburou Kitai Kiyoshi Ichimoto Hideki Takami |
| Institution: | 5. Department of Computer Sciences, Kitami Institute of Technology, 165 Koen-cho, Kitami, Hokkaido, 090-8507, Japan 1. Department of Applied Physics, Graduate School of Engineering, Hokkaido University, Sapporo, 060-8628, Japan 2. National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo, 181-8588, Japan 3. Hida Observatory, Graduate School of Science, Kyoto University, Kamitakara, Takayama, Gifu, 506-1314, Japan 4. Subaru Telescope, National Astronomical Observatory of Japan, 650 North A’ohoku Place, Hilo, HI, 96720, USA |
| Abstract: | A solar adaptive optics system has been improved by using a high-speed electromagnetic deformable mirror and adopting a modified sum-of-absolute-differences algorithm in wavefront sensing. Results of laboratory experiments clearly show that the use of the mirror raises the temporal performance of the system. In solar observations, wavefront compensation using solar granules as a target is realized. |
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