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| 1 | Advances in optical engineering for future telescopes显示文摘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. | Daewook Kim Heejoo Choi Trenton Brendel Henry Quach Marcos Esparza Hyukmo Kang Yi-Ting Feng Jaren NAshcraft Xiaolong Ke Tianyi Wang Ewan SDouglas | 2021 | Opto-Electronic Advances2021，4，6： | 10 |
| 2 | Preparation of Hard Agglomerates Free and Weakly Agglomerated Antimony Doped Tin Oxide (ATO) Nanoparticles by Coprecipitation Reaction in Methanol Reaction Medium显示文摘 | Kim Daewook Kim Younggon Oh Seonggeun | 2006 | Materials Chemistry and Physics2006，97，6： | 1 |
| 3 | Systematic Radio Telescope Alignment Using Portable Fringe Projection Profilometry显示文摘In 2019,the Event Horizon Telescope(EHT)released the first-ever image of a black hole event horizon.Astronomers are now aiming for higher angular resolutions of distant targets,like black holes,to understand more about the fundamental laws of gravity that govern our universe.To achieve this higher resolution and increased sensitivity,larger radio telescopes are needed to operate at higher frequencies and in larger quantities.Projects like the next-generation Very Large Array(ngVLA)and the Square-Kilometer Array(SKA)require building hundreds of telescopes with diameters greater than 10 ms over the next decade.This has a twofold effect.Radio telescope surfaces need to be more accurate to operate at higher frequencies,and the logistics involved in maintaining a radio telescope need to be simplified to support them properly in large quantities.Both of these problems can be solved with improved methods for surface metrology that are faster and more accurate with a higher resolution.This leads to faster and more accurate panel alignment and,therefore,a more productive observatory.In this paper,we present the use of binocular fringe projection profilometry as a solution to this problem and demonstrate it by aligning two panels on a 3-m radio telescope dish.The measurement takes only 10 min and directly delivers feedback on the tip,tilt,and piston of each panel to create the ideal reflector shape. | Joel Berkson Justin Hyatt Nathan Julicher Byeongjoon Jeong Isaac Pimienta Rachel Ball Wyatt Ellis Jason Voris Diego Torres‑Barajas Daewook Kim | 2024 | Nanomanufacturing and Metrology2024，7，1： | 0 |
| 4 | Adaptive Thermoforming and Structural Design of Millimeter-Wave Antenna Panels显示文摘Future large-scale radio telescope observatories,such as the next-generation Very Large Array,involve extremely large collection areas.These collection areas are divided into smaller shaped panels,which typically require their own unique molds to manufacture.For these projects to be cost-effective,an efficient fabrication method for the shaped panels is needed.This paper outlines the development and success of a novel adaptive freeform panel molding technology that greatly improves manufacturing efficiency due to its repeatable and reusable nature.Moreover,it presents an analysis of a proposed panel structural design for the shaped panels,which incorporates a study on surface deformation due to gravity and wind loading under realistic operational conditions. | Zack Hatfield Alex St.Peter Christian Davila-Peralta Joel Berkson Daewook Kim Justin Hyatt | 2022 | Nanomanufacturing and Metrology2022，5，4： | 0 |
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