arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1809.09655astro-ph.IM
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集总元件动态电感探测器阵列的光学响应

Optical Response of Lumped-Element Kinetic-Inductance Detector Arrays

Shibo Shu, Martino Calvo, Johannes Goupy, Andrea Catalano, Aurelien Bideaud, Alessandro Monfardini, Samuel Leclercq, Eduard F. C. Driessen

摘要:

我们提出了一个集总元件动态电感探测器阵列的光学响应的分析,基于NIKA2 1mm阵列。该阵列具有用于直接吸收入射光子的双偏振敏感希尔伯特电感器。我们提出的光学响应计算传输线模型,HFSS模拟和测量使用傅里叶变换光谱仪。我们已经估计了由像素的单个组件(例如电感器)吸收的能量。根据模拟,吸收效率之间的差异预计为20%。傅里叶变换光谱测量,在实际的NIKA2阵列上进行,验证了我们的模拟。我们讨论了几种可能的方法来提高吸收效率。该分析可用于优化焦平面布局,并可扩展到毫米,亚毫米和太赫兹频段的其他动态电感探测器阵列设计。

英文摘要:

We present an analysis of the optical response of lumped-element kinetic-inductance detector arrays, based on the NIKA2 1mm array. This array has a dual-polarization sensitive Hilbert inductor for directly absorbing incident photons. We present the optical response calculated from a transmission line model, simulated with HFSS and measured using a Fourier transform spectrometer. We have estimated the energy absorbed by individual component of a pixel, such as the inductor. The difference between the absorption efficiencies is expected to be 20% from the simulations. The Fourier-transform spectroscopy measurement, performed on the actual NIKA2 arrays, validates our simulations. We discuss several possible ways to increase the absorption efficiency. This analysis can be used for optimization of the focal plane layout and can be extended to other kinetic inductance detector array designs in millimeter, sub-millimeter and terahertz frequency bands.

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