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主題: 地基望遠鏡新技術可以研究系外行星 作者: peter 於 2017-10-11 12:09:40 https://www.sciencedaily.com/releases/2017/10/171006142203.htm
(https://www.sciencedaily.com/images/2017/10/171006142203_1_540x360.jpg) Left: Light from a laser pointer is shaped into a wide and stable output using a beam-shaping diffuser. A carefully designed pattern is precisely molded into plastic polymers or directly into a glass substrate, creating micro-structures on the surface of the diffuser (inset; image credit: RPC Photonics). Right: The diffuser installed at the 3.5m telescope at Apache Point Observatory. |