DESHIMA 2.0: Laboratory demonstration of the ultra-wideband integrated superconducting spectrometer

Kenichi Karatsu; Akira Endo; Stephen J. C. Yates; Robert Huiting; Arend Moerman; Alejandro Pascual Laguna; Shahab Dabironezare; Vignesh Murugesan; David J. Thoen; Hiroki Akamatsu; Tom J. L. C. Bakx; Juan Bueno; Bruno Buijtendorp; Yasunori Fujii; Kazuyuki Fujita; Sebastian Haehnle; Tsuyoshi Ishida; Shun Ishii; Ryohei Kawabe; Tetsu Kitayama; Kotaro Kohno; Akira Kouchi; Nuria Llombart; Jun Maekawa; Keiichi Matsuda; Shunichi Nakatsubo; Tai Oshima; Matus Rybak; Tatsuya Takekoshi; Yoichi Tamura; Akio Taniguchi; Paul P. van der Werf; Jochem J. A. Baselmans

doi:10.1117/12.2629339

26 August 2022 DESHIMA 2.0: Laboratory demonstration of the ultra-wideband integrated superconducting spectrometer

Kenichi Karatsu, Akira Endo, Stephen J. C. Yates, Robert Huiting, Arend Moerman, Alejandro Pascual Laguna, Shahab Dabironezare, Vignesh Murugesan, David J. Thoen, Hiroki Akamatsu, Tom J. L. C. Bakx, Juan Bueno, Bruno Buijtendorp, Yasunori Fujii, Kazuyuki Fujita, Sebastian Haehnle, Tsuyoshi Ishida, Shun Ishii, Ryohei Kawabe, Tetsu Kitayama, Kotaro Kohno, Akira Kouchi, Nuria Llombart, Jun Maekawa, Keiichi Matsuda, Shunichi Nakatsubo, Tai Oshima, Matus Rybak, Tatsuya Takekoshi, Yoichi Tamura, Akio Taniguchi, Paul P. van der Werf, Jochem J. A. Baselmans

Author Affiliations +

Proceedings Volume PC12190, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XI; PC121900C (2022) https://doi.org/10.1117/12.2629339
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Abstract

DESHIMA 2.0 is an ultra-wideband submillimeter spectrometer based on integrated superconducting microstrip filters and Microwave Kinetic Inductance Detectors (MKIDs). We have successfully demonstrated its ultra-wideband performance in the laboratory. The measured instantaneous frequency coverage with ~300 MKIDs is 225-415 GHz, with a mean filter Q of ~670. The broadband quasi-optical chain of the instrument is characterized by beam patterns across the whole frequency range that are obtained simultaneously by a novel phase-amplitude beam measurement technique. We plan to deploy the instrument on the ASTE telescope for a commissioning and science verification campaign in 2022-2023.

Conference Presentation

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Kenichi Karatsu, Akira Endo, Stephen J. C. Yates, Robert Huiting, Arend Moerman, Alejandro Pascual Laguna, Shahab Dabironezare, Vignesh Murugesan, David J. Thoen, Hiroki Akamatsu, Tom J. L. C. Bakx, Juan Bueno, Bruno Buijtendorp, Yasunori Fujii, Kazuyuki Fujita, Sebastian Haehnle, Tsuyoshi Ishida, Shun Ishii, Ryohei Kawabe, Tetsu Kitayama, Kotaro Kohno, Akira Kouchi, Nuria Llombart, Jun Maekawa, Keiichi Matsuda, Shunichi Nakatsubo, Tai Oshima, Matus Rybak, Tatsuya Takekoshi, Yoichi Tamura, Akio Taniguchi, Paul P. van der Werf, and Jochem J. A. Baselmans "DESHIMA 2.0: Laboratory demonstration of the ultra-wideband integrated superconducting spectrometer", Proc. SPIE PC12190, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XI, PC121900C (26 August 2022); https://doi.org/10.1117/12.2629339

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KEYWORDS

Spectroscopy

Superconductors

Atmospheric optics

Mirrors

Optical cryogenics

Optical testing

Telescopes

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