新一代单体月球激光角反射器方案设计

Schematic Design of New Generation of Lunar Corner Cube Retroreflector with Single Aperture

摘要: 设计了用于新一代月球激光测距（Lunar Laser Ranging，LLR）的单体大孔径激光角反射器，在分析当前国内外研究进展及发展趋势基础上，介绍了所设计的单体大孔径激光角反射器的整体设计方案，具体包括：角反射器的设计和月面安置方案、地面测试方案。验证结果表明：所设计的单体170 mm孔径空心角反射器，在532 nm波长的反射光强可达到理想“阿波罗11”（Apollo 11）角反射器阵列的68.5%。该研究预期可将月球激光测距的单个接收光子对应的内符合精度提升至毫米量级。

Abstract: A corner cube retroreflector (CCR) with single large aperture for the new generation of Lunar Laser Ranging (LLR) is designed. On the basis of analyzing the current research progress and development trend at home and abroad, the overall design scheme of the single large aperture CCR is introduced, including the design of retroreflector, the scheme of placement on lunar surface, and the environmental testing scheme. It is verified that the 170 mm hollow CCR can realize 68.5% reflecting intensity of ideal Apollo 11 CCR array at 532 nm. This study is anticipated to promote the precision of LLR for a single photon received to millimeter level.