AI 中文总结
研究聚焦于制造用于TA-MOONS的微型MOONS微光学阵列,通过双光子聚合等技术制造球形凹面微镜,优化其均匀性等性能,证明将定制微光学器件集成到多目标光谱仪器可提高恒星调查校准和效率。
AI 中文摘要
理解恒星和行星形成需要对大量年轻恒星物体进行光学至近红外光谱观测。TIFR-ARIES多目标光学至近红外光谱仪(TA-MOONS)的主要目标是对360纳米至2.5微米波长范围内的年轻恒星物体进行大规模光谱调查,具备同时观测多达八个源的多路复用能力。通过在机械臂上移动拾取镜实现多路复用。机械臂系统的一个组件是微型MOONS,它是一种微光学阵列,通过纳米制造来实现恒星图像在拾取镜上的精确校准、验证和定位。微型MOONS系统的微镜是球形凹面镜,通过NanoScribe GT2系统中的双光子聚合(2PP)制造,使用IP-S光刻胶印刷在经过等离子体清洗的硅基板上,然后镀金。2PP能实现亚微米级的精细、详细形状,否则难以且成本高昂。微型MOONS的优化重点在于实现均匀性、最小化表面粗糙度并保持所需曲率半径,以避免在拾取镜附近出现光束阻塞。这项工作证明了将先进的定制印刷微光学器件集成到多目标光谱仪器中的可行性,可提高大规模恒星调查中的校准和效率。
英文摘要
Understanding star and planet formation requires optical to near-infrared spectroscopic observations of a large number of young stellar objects. The TIFR-ARIES Multi-Object Optical to Near-infrared Spectrometer's (TA-MOONS) primary objective is to preform a large spectroscopic survey of young stellar objects across wavelengths of 360 nm to 2.5 microns, with the multiplexed capability of observing up to eight sources simultaneously. Multiplexity is achieved by moving pickup mirrors on robotic arms. One component of this robotic arm system is Micro-MOONS, a micro-optic array, nanofabricated to enable accurate calibration, validation, and positioning of stellar images onto the pickup mirrors. The micro-mirrors of the Micro-MOONS system are spherically concave, fabricated via two-photon polymerization(2PP) in the NanoScribe GT2 system, and are printed on plasma-cleaned silicon substrates using IP-S photoresist, followed by gold coating. 2PP allows for fine, detailed shapes on a sub-micron scale that are otherwise difficult and costly to obtain. The optimization of Micro-MOONS focuses on achieving uniformity, minimizing surface roughness, and preserving the desired radius of curvature to avoid beam obstruction near the pickup mirrors. This work demonstrates the feasibility of integrating advanced custom-printed micro-optics into multi-object spectroscopic instruments, enabling improved calibration and efficiency in large-scale stellar surveys.
Comments15 pages, 10 figures. Author's version of paper 14154-202 presented at SPIE Astronomical Telescope + Instrumentation 2026. To appear in SPIE Proceedings Volume 14154