CRISP成像光谱仪用高效多色全斯托克斯偏振调制器的设计与性能分析
Design and Performance Analysis of a Highly Efficient Polychromatic Full-Stokes Polarization Modulator for the CRISP Imaging Spectrometer
摘要：
我们提出了一种多色偏振调制器的设计和性能的CRISP成像光谱偏振仪（CRISP）的法布里-珀罗可调谐窄带成像光谱偏振器在瑞典1米太阳望远镜（SST）。我们深入讨论了设计过程，通过容差分析比较了两种可能的调制器设计，并研究了所选设计的热灵敏度。本文中所描述的权衡和过程通常适用于宽带偏振调制器的开发。该调制器自2015年以来一直在建造和运行。其测量性能在500和900 nm之间接近最佳，并且设计和竣工调制器之间的差异在很大程度上是可以理解的。我们展示了一些示例数据，并简要回顾了使用SST/CRISP和该调制器数据的科学工作。
英文摘要：
We present the design and performance of a polychromatic polarization modulator for the CRisp Imaging SpectroPolarimeter (CRISP) Fabry-Perot tunable narrow-band imaging spectropolarimer at the Swedish 1-m Solar Telescope (SST). We discuss the design process in depth, compare two possible modulator designs through a tolerance analysis, and investigate thermal sensitivity of the selected design. The trade-offs and procedures described in this paper are generally applicable in the development of broadband polarization modulators. The modulator was built and has been operational since 2015. Its measured performance is close to optimal between 500 and 900~nm, and differences between the design and as-built modulator are largely understood. We show some example data, and briefly review scientific work that used data from SST/CRISP and this modulator.
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