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Advances in optical engineering for future telescopes

Opto-Electronic Advances 2021年第6期4卷 20-43页

作者： Daewook Kim Heejoo Choi trenton brendel Henry Quach Marcos Esparza Hyukmo Kang Yi-Ting Feng Jaren NAshcraft Xiaolong Ke Tianyi Wang Ewan SDouglas Wyant College of Optical Sciences University of Arizona1630 E.University Blvd.TucsonAZ 85721USA Department of Astronomy and Steward Observatory University of Arizona933 N.Cherry Ave.TucsonAZ 85721USA Large Binocular Telescope Observatory University of Arizona933 N.Cherry Ave.TucsonAZ 85721USA School of Mechanical and Automotive Engineering Xiamen University of TechnologyXiamen 361024China National Synchrotron Light Source II(NSLS-II) Brookhaven National LaboratoryPO Box 5000UptonNew York 11973USA.

Significant optical engineering advances at the University of Arizona are being made for design, fabrication, and construction of next generation astronomical telescopes. This summary review paper focuses on the technological advances in three key areas. First is the optical fabrication technique used for constructing next-generation telescope mirrors. Advances in ground-based telescope control and instrumentation comprise the second area of development. This includes active alignment of the laser truss-based Large Binocular Telescope(LBT) prime focus camera, the new MOBIUS modular cross-dispersion spectroscopy unit used at the prime focal plane of the LBT, and topological pupil segment optimization. Lastly, future space telescope concepts and enabling technologies are discussed. Among these, the Nautilus space observatory requires challenging alignment of segmented multi-order diffractive elements. The OASIS terahertz space telescope presents unique challenges for characterizing the inflatable primary mirror, and the Hyperion space telescope pushes the limits of high spectral resolution, far-UV spectroscopy. The Coronagraphic Debris and Exoplanet Exploring Pioneer(CDEEP) is a Small Satellite(Small Sat) mission concept for high-contrast imaging of circumstellar disks and exoplanets using vector vortex coronagraph. These advances in optical engineering technologies will help mankind to probe, explore, and understand the scientific beauty of our universe.

关键词： computer controlled optical surfacing CCOS multiplexing dwell time optimization optical metrology telescope alignment large binocular telescope MOBIUS pupil segmentation OASIS nautilus hyperion CDEEP vector vortex coronagraph

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