Development of an optical coupling with ground-side absorption for antenna-coupled kinetic inductance detectors

Hiroki Watanabe; Satoru Mima; Shugo Oguri; Mitsuhiro Yoshida; Masashi Hazumi; Hirokazu Ishino; Hikaru Ishitsuka; Atsuko Kibayashi; Chiko Otani; Nobuaki Sato; Osamu Tajima; Nozomu Tomita

doi:10.1587/transele.E100.C.298

Development of an optical coupling with ground-side absorption for antenna-coupled kinetic inductance detectors

Hiroki Watanabe, Satoru Mima, Shugo Oguri, Mitsuhiro Yoshida, Masashi Hazumi, Hirokazu Ishino, Hikaru Ishitsuka, Atsuko Kibayashi, Chiko Otani, Nobuaki Sato, Osamu Tajima, Nozomu Tomita

Research output: Contribution to journal › Article › peer-review

Abstract

Antenna-coupled kinetic inductance detectors (KIDs) have recently shown great promise as microwave detection systems with a large number of channels. However, this technique, still has difficulties in eliminating the radiation loss of the resonator signals. To solve this problem, we propose a design in which the absorption area connected to an antenna is located on the ground-side of a coplanar waveguide. Thereby, radiation loss due to leakage from the resonator to the antenna can be considerably reduced. This simple design also enables the use of a contact aligner for fabrication. We have developed KIDs with this design, named as the ground-side absorption (GSA)-KIDs and demonstrated that they have higher quality factors than those of the existing KIDs, while maintaining a good total sensitivity.

Original language	English
Pages (from-to)	298-304
Number of pages	7
Journal	IEICE Transactions on Electronics
Volume	E100C
Issue number	3
DOIs	https://doi.org/10.1587/transele.E100.C.298
Publication status	Published - Mar 2017

Keywords

Kinetic inductance detectors
Optical coupling
Superconducting detector

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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Development of an optical coupling with ground-side absorption for antenna-coupled kinetic inductance detectors. / Watanabe, Hiroki; Mima, Satoru; Oguri, Shugo; Yoshida, Mitsuhiro; Hazumi, Masashi; Ishino, Hirokazu; Ishitsuka, Hikaru; Kibayashi, Atsuko; Otani, Chiko; Sato, Nobuaki; Tajima, Osamu; Tomita, Nozomu.

In: IEICE Transactions on Electronics, Vol. E100C, No. 3, 03.2017, p. 298-304.

Research output: Contribution to journal › Article › peer-review

Watanabe, Hiroki ; Mima, Satoru ; Oguri, Shugo ; Yoshida, Mitsuhiro ; Hazumi, Masashi ; Ishino, Hirokazu ; Ishitsuka, Hikaru ; Kibayashi, Atsuko ; Otani, Chiko ; Sato, Nobuaki ; Tajima, Osamu ; Tomita, Nozomu. / Development of an optical coupling with ground-side absorption for antenna-coupled kinetic inductance detectors. In: IEICE Transactions on Electronics. 2017 ; Vol. E100C, No. 3. pp. 298-304.

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abstract = "Antenna-coupled kinetic inductance detectors (KIDs) have recently shown great promise as microwave detection systems with a large number of channels. However, this technique, still has difficulties in eliminating the radiation loss of the resonator signals. To solve this problem, we propose a design in which the absorption area connected to an antenna is located on the ground-side of a coplanar waveguide. Thereby, radiation loss due to leakage from the resonator to the antenna can be considerably reduced. This simple design also enables the use of a contact aligner for fabrication. We have developed KIDs with this design, named as the ground-side absorption (GSA)-KIDs and demonstrated that they have higher quality factors than those of the existing KIDs, while maintaining a good total sensitivity.",

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