Sub-mm-Wave Superconducting On-Chip Filter Bank for Astronomy
2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)(2020)
摘要
A superconducting on-chip microstrip filter bank spectrometer prototype for Far-Infrared (FIR) Astronomy is presented. The measurements showcase its capabilities towards moderate spectral resolution (
$f/\Delta f\sim 500$
) broadband FIR spectroscopy. In this sub-mm-wave filter bank, each spectral channel consists of an “I-shaped” microstrip THz bandpass filter that couples the radiation to a Microwave Kinetic Inductance Detector (MKID) for a background limited detection and a scalable frequency-multiplexed microwave readout.
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关键词
moderate spectral resolution,sub-mm-wave filter bank,spectral channel,bandpass filter,On-Chip Filter Bank,superconducting on-chip microstrip filter bank
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