论文标题
下一代宇宙学的25,000个光纤定位机器人
25,000 optical fiber positioning robots for next-generation cosmology
论文作者
论文摘要
大量平行的多对象光谱仪位于宇宙学仪器的前沿。例如，高成功的深色能谱仪器（DESI），该仪器于2021年5月开始进行调查操作，有5,000个机器人散发的多模纤维，这些纤维可以同时从数千个单独的星系和类星体中传递到一系列高分辨率的光谱仪。红移是单独测量的，因此以前所未有的细节提供了宇宙的3D地图，并能够精确测量暗能量扩展和其他关键的宇宙学参数。在这里，我们介绍了下一代纤维固定机器人的设计和原型制作的新作品。在6.2毫米中心对中心的音高，具有1-2 UM定位精度，并且在可扩展的外观上，这些设备将使下一代的宇宙学仪器能够扩展到具有10,000至25,000光纤机器人的仪器。
Massively parallel multi-object spectrographs are on the leading edge of cosmology instrumentation. The highly successful Dark Energy Spectroscopic Instrument (DESI) which begun survey operations in May 2021, for example, has 5,000 robotically-actuated multimode fibers, which deliver light from thousands of individual galaxies and quasars simultaneously to an array of high-resolution spectrographs off-telescope. The redshifts are individually measured, thus providing 3D maps of the Universe in unprecedented detail, and enabling precise measurement of dark energy expansion and other key cosmological parameters. Here we present new work in the design and prototyping of the next generation of fiber-positioning robots. At 6.2 mm center-to-center pitch, with 1-2 um positioning precision, and in a scalable form factor, these devices will enable the next generation of cosmology instruments, scaling up to instruments with 10,000 to 25,000 fiber robots.
