Feedhorn development and scalability for Simons Observatory and beyond
Feedhorn development and scalability for Simons Observatory and beyond
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西蒙斯天文台及其他地区的 Feedhorn 开发和可扩展性
DOI：
10.1117/12.2313405
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
他22名
中科院分区：
文献类型：
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作者：
Sara M. Simon;他22名
西蒙斯天文台（SO）将以前所未有的灵敏度在27-270 GHz的广泛角标度和频率范围内测量宇宙微波背景（CMB）的温度和偏振。一种用于将光耦合到SO将场的~50个检测器晶片上的技术是样条轮廓的喇叭天线，其提供耦合效率和光束偏振泄漏效应的控制之间的可调谐性。我们将努力扩大喇叭天线的生产SO和未来的CMB实验，包括直接加工金属喇叭天线阵列和激光加工堆叠硅阵列的可行性。
The Simons Observatory (SO) will measure the cosmic microwave background (CMB) in both temperature and polarization over a wide range of angular scales and frequencies from 27-270 GHz with unprecedented sensitivity. One technology for coupling light onto the ~50 detector wafers that SO will field is spline-profiled feedhorns, which offer tunability between coupling efficiency and control of beam polarization leakage effects. We will present efforts to scale up feedhorn production for SO and their viability for future CMB experiments, including direct-machining metal feedhorn arrays and laser machining stacked Si arrays.