AI 中文总结
该研究开发了基于DMD的MiraSOL太阳光谱仪，可选取太阳区域观测、探测恒星污染，构建原型验证其可行性，能耦合EPRV光谱仪开展相关研究。
AI 中文摘要
我们介绍了新型太阳观测实验平台MiraSOL的科学动机、初步设计要求、设备实验室测试及原型。MiraSOL将采用数字微镜（DMD）技术主动选取太阳盘面上的区域进行光谱观测，以确定恒星变异性的空间相关径向速度特征，还可在太阳盘面上创建凌星现象，探测恒星污染对系外行星凌星光谱的影响。MiraSOL使用德州仪器DLP801RE作为空间光调制器，形成的掩模每个微镜空间采样为3角秒，能够分辨太阳盘面的特征。该仪器将配备光纤输出，可与HPF或NEID等最先进的极高精度径向速度（EPRV）光谱仪耦合，获取太阳黑子和谱斑的高分辨率稳定光谱，或与低分辨率光谱仪配合，用于研究凌星光谱中的恒星污染。我们还讨论了发现的60Hz闪烁信号，其可能源于数字微镜设备电子部件的商用现货（COTS）评估板。此外，我们构建了概念验证原型，展示了完整太阳盘面的成像及像素级控制，以验证该技术的可行性。
英文摘要
We present the science motivation, preliminary design requirements, device laboratory testing and a prototype for an new experimental platform for solar observations, MiraSOL. MiraSOL will use digital micromirror technology to actively select regions on the solar disk for spectroscopic observation to determine the spatially dependent radial velocity signatures of stellar variability, and can create transits on the solar disk to probe the effects of stellar contamination on exoplanet transmission spectra. MiraSOL uses the Texas Instruments DLP801RE as a spatial light modulator to allow a mask, with 3 arcsecond spatial sampling per micromirror, capable of resolving features on the solar disk. This instrument will have a fiber output which can then be coupled with state-of-the-art extreme precision radial velocity (EPRV) spectrometers, such as HPF or NEID, for high resolving power, stable spectra of sunspots and plage, or a low resolution spectrometer for studies of stellar contamination in transit spectra. We discuss a 60 Hz flicker signal we discovered, likely due to the commercial off-the-shelf (COTS) evaluation board of the digital micromirror device electronics. We also build a proof-of-concept prototype and demonstrate imaging and pixel-level control of the full solar disk to demonstrate the feasibility of this technology.
Comments11 pages, 7 figures. Author's version of Paper 14154-220 presented at SPIE Astronomical Telescopes and Instrumentation, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation VII, July 2026. To appear in SPIE Proceedings Vol. 14154; typos corrected
