DESHIMA on ASTE: On-sky performance and upgrade to ultra wideband

Akira Endo; Kenichi Karatsu; Yoichi Tamura; Tai Oshima; Akio Taniguchi; Tatsuya Takekoshi; Shin'ichiro Asayama; Tom J. L. C. Bakx; Sjoerd Bosma; Juan Bueno; Bruno Buijtendorp; Kah Wuy Chin; Yasunori Fujii; Kazuyuki Fujita; Esmee Huijten; Robert Huiting; Soh Ikarashi; Tsuyoshi Ishida; Shun Ishii; Ryohei Kawabe; Teun M. Klapwijk; Kotaro Kohno; Akira Kouchi; Nuria Llombart; Jun Maekawa; Vignesh Murugesan; Shunichi Nakatsubo; Masato Naruse; Kazushige Ohtawara; Alejandro Pascual Laguna; Junya Suzuki; Koyo Suzuki; David J. Thoen; Takashi Tsukagoshi; Tetsutaro Ueda; Pieter J. de Visser; Paul P. van der Werf; Stephen J. C. Yates; Yuki Yoshimura; Ozan Yurduseven; Shahab Dabironezare; Sebastian Hähnle; Jochem J. A. Baselmans

doi:10.1117/12.2560669

13 December 2020 DESHIMA on ASTE: On-sky performance and upgrade to ultra wideband

Akira Endo, Kenichi Karatsu, Yoichi Tamura, Tai Oshima, Akio Taniguchi, Tatsuya Takekoshi, Shin'ichiro Asayama, Tom J. L. C. Bakx, Sjoerd Bosma, Juan Bueno, Bruno Buijtendorp, Kah Wuy Chin, Yasunori Fujii, Kazuyuki Fujita, Esmee Huijten, Robert Huiting, Soh Ikarashi, Tsuyoshi Ishida, Shun Ishii, Ryohei Kawabe, Teun M. Klapwijk, Kotaro Kohno, Akira Kouchi, Nuria Llombart, Jun Maekawa, Vignesh Murugesan, Shunichi Nakatsubo, Masato Naruse, Kazushige Ohtawara, Alejandro Pascual Laguna, Junya Suzuki, Koyo Suzuki, David J. Thoen, Takashi Tsukagoshi, Tetsutaro Ueda, Pieter J. de Visser, Paul P. van der Werf, Stephen J. C. Yates, Yuki Yoshimura, Ozan Yurduseven, Shahab Dabironezare, Sebastian Hähnle, Jochem J. A. Baselmans

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Proceedings Volume 11453, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy X; 114530L (2020) https://doi.org/10.1117/12.2560669
Event: SPIE Astronomical Telescopes + Instrumentation, 2020, Online Only

Abstract

The integrated superconducting spectrometer (ISS) enables ultra-wideband, large field-of-view integral-field-spectrometer designs for mm-submm wave astronomy. DESHIMA 2.0 is a single-pixel ISS spectrometer for the ASTE 10-m telescope, designed to observe the 220-440 GHz band in a single shot, corresponding to a [CII] redshift range of z=3.3-7.6. The first-light experiment of DESHIMA, using a 332-377 GHz configuration has shown excellent consistency between the performance derived from on-sky measurements, lab-measurements and the design. Ongoing upgrades towards the octave-bandwidth full system include the development of a filterbank chip with ~350 channels and higher optical efficiency, a wideband quasioptical design, and observing methods for efficiently removing the atmosphere.

Conference Presentation

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Akira Endo, Kenichi Karatsu, Yoichi Tamura, Tai Oshima, Akio Taniguchi, Tatsuya Takekoshi, Shin'ichiro Asayama, Tom J. L. C. Bakx, Sjoerd Bosma, Juan Bueno, Bruno Buijtendorp, Kah Wuy Chin, Yasunori Fujii, Kazuyuki Fujita, Esmee Huijten, Robert Huiting, Soh Ikarashi, Tsuyoshi Ishida, Shun Ishii, Ryohei Kawabe, Teun M. Klapwijk, Kotaro Kohno, Akira Kouchi, Nuria Llombart, Jun Maekawa, Vignesh Murugesan, Shunichi Nakatsubo, Masato Naruse, Kazushige Ohtawara, Alejandro Pascual Laguna, Junya Suzuki, Koyo Suzuki, David J. Thoen, Takashi Tsukagoshi, Tetsutaro Ueda, Pieter J. de Visser, Paul P. van der Werf, Stephen J. C. Yates, Yuki Yoshimura, Ozan Yurduseven, Shahab Dabironezare, Sebastian Hähnle, and Jochem J. A. Baselmans "DESHIMA on ASTE: On-sky performance and upgrade to ultra wideband", Proc. SPIE 11453, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy X, 114530L (13 December 2020); https://doi.org/10.1117/12.2560669

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KEYWORDS

Astronomy

Spectroscopy

Prototyping

Superconductors

Electronic filtering

Inductance

Integrated circuits

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