Modeling Transmission and Reflection Mueller Matrices of Dielectric Half-Wave Plates

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• 作者：Maria Salatino ; Paolo de Bernardis…
• 关键词：Cosmic microwave background ; Mueller matrix ; Multiple reflections ; Polarimeter ; Polarization ; Waveplate
• 刊名：Journal of Infrared, Millimeter, and Terahertz Waves
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：38
• 期：2
• 页码：215-228
• 全文大小：
• 刊物类别：Physics and Astronomy
• 刊物主题：Electrical Engineering; Electronics and Microelectronics, Instrumentation; Classical Electrodynamics;
• 出版者：Springer US
• ISSN：1866-6906
• 卷排序：38

文摘

We present a simple analytical model describing multiple reflections in dielectric and optically active waveplates, for both normal and slant incidence, including absorption. We compute from first principles the transmission and reflection Mueller matrices of the waveplate. The model is used to simulate the performance of a Stokes polarimeter for mm-waves, in the framework of current attempts to precisely measure the linear polarization of the Cosmic Microwave Background (CMB). We study the spectral response of these optical devices, taking into account band and angle averaging effects and confirm the presence of a much richer spectral dependence than in an ideal phase retarder. We also present the matrix elements for the reflection matrix, which is useful to estimate systematic effects in some polarimeter configurations. The formulas we have derived can be used to quickly simulate the performance of future CMB polarimeters.