中国物理学会期刊网
Chin.Phys.B  2018, Vol.27 Issue (10): 100701  DOI:10.1088/1674-1056/27/10/100701
Development of a 170-mm hollow corner cube retroreflector for the future lunar laser ranging
1 TianQin Research Center for Gravitational Physics, Sun Yat-sen University, Zhuhai 519000, China;2 MOE Key Laboratory of Fundamental Physical Quantities Measurement, School of Physics, Huazhong University of Science and Technology, Wuhan 430074, China;3 School of Physics and Astronomy, Sun Yat-sen University, Zhuhai 519000, China;4 DFH Satellite Co., Ltd., Beijing 100094, China>

Abstract

Over the past 50 years, lunar laser ranging has made great contributions to the understanding of the Earth-Moon system and the tests of general relativity. However, because of the lunar libration, the Apollo and Lunokhod corner-cube retroreflector (CCR) arrays placed on the Moon currently limit the ranging precision to a few centimeters for a single photon received. Therefore, it is necessary to deploy a new retroreflector with a single and large aperture to improve the ranging precision by at least one order of magnitude. Here we present a hollow retroreflector with a 170-mm aperture fabricated using hydroxide-catalysis bonding technology. The precisions of the two dihedral angles are achieved by the mirror processing with a sub-arc-second precision perpendicularity, and the remaining one is adjusted utilizing an auxiliary optical configuration including two autocollimators. The achieved precisions of the three dihedral angles are 0.10 arc-second, 0.30 arc-second, and 0.24 arc-second, indicating the 68.5% return signal intensity of ideal Apollo 11/14 based on the far field diffraction pattern simulation. We anticipate that this hollow CCR can be applied in the new generation of lunar laser ranging.
收稿日期:2018-06-24

基金资助

Project supported by the National Natural Science Foundation of China (Grant Nos. 11655001 and 11605065).

引用本文

[英文]
Yun He, Qi Liu, Jing-Jing He, Ming Li, Hui-Zong Duan, Hsien-Chi Yeh, Jun Luo. Development of a 170-mm hollow corner cube retroreflector for the future lunar laser ranging[J]. Chin. Phys. B, 2018, 27(10): 100701.
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