Development Status of a Microwave Kinetic Inductance Detector for an Imaging Fourier Transform Terahertz Spectrometer
2012; Cryogenic Association of Japan; Volume: 47; Issue: 9 Linguagem: Inglês
10.2221/jcsj.47.554
ISSN1880-0408
AutoresSeiichiro Ariyoshi, Kensuke Nakajima, Atsushi Saito, Tohru TAINO, Chiko Otani,
Tópico(s)Radio Frequency Integrated Circuit Design
ResumoWe propose a novel microwave kinetic inductance detector (MKID) named spiral-MKID typified by a rewound spiral strip structure suitable for terahertz applications. The superconducting rewound strip works as a high-Q half wavelength microwave resonator as well as a broadband terahertz antenna. The spiral-MKIDs fabricated with NbN films reveal loaded quality factors of the order of 104 at 3 K. NbN is one of the promising materials suitable for working on a convenient 4K-refrigerator. We also discuss the expected noise equivalent power of the optimized detector.
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