Fabrication Development for SPT-SLIM, a Superconducting Spectrometer for Line Intensity Mapping
Fabrication Development for SPT-SLIM, a Superconducting Spectrometer for Line Intensity Mapping
复制标题
用于线强度映射的超导光谱仪 SPT-SLIM 的制造开发
DOI:
10.1109/tasc.2023.3259919
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发表时间:
2023
影响因子:
1.8
通讯作者:
Gualtieri, R.
中科院分区:
文献类型:
--
作者:
Cecil, T.;Albert, C.;Anderson, A. J.;Barry, P. S.;Benson, B.;Cotter, C.;Chang, C.;Dobbs, M.;Dibert, K.;Gualtieri, R.
Line Intensity Mapping (LIM) is a new observational technique that uses low-resolution observations of line emission to efficiently trace the large-scale structure of the Universe out to high redshift. Common mm/sub-mm emission lines are accessible from ground-based observatories, and the requirements on the detectors for LIM at mm-wavelengths are well matched to the capabilities of large-format arrays of superconducting sensors. We describe the development of an=on-chip superconducting filter-bank spectrometer covering the 120–180 GHz band for future mm-LIM experiments, focusing on SPT-SLIM, a pathfinder LIM instrument for the South Pole Telescope. Radiation is coupled from the telescope optical system to the spectrometer chip via an array of feedhorn-coupled orthomode transducers. Superconducting microstrip transmission lines then carry the signal to an array of channelizing half-wavelength resonators, and the output of each spectral channel is sensed by a lumped element kinetic inductance detector (leKID). Key areas of development include incorporating new low-loss dielectrics to improve both the achievable spectral resolution and optical efficiency and development of a robust fabrication process to create a galvanic connection between ultra-pure superconducting thin-films to realize multi-material (hybrid) leKIDs. We provide an overview of the spectrometer design, fabrication process, and prototype devices.
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影响因子:
2
作者:
Q. Y. Tang;P. Barry;T. Cecil;E. Shirokoff
通讯作者:
E. Shirokoff
影响因子:
4.6
作者:
S. Hähnle;K. Kouwenhoven;B. Buijtendorp;A. Endo;K. Karatsu;D. Thoen;V. Murugesan;J. Baselmans
通讯作者:
J. Baselmans
DOI:
--
发表时间:
2022
期刊:
Astronomical Telescopes + Instrumentation
影响因子:
--
作者:
M. Rouble;G. Smecher;Adam J. Anderson;Peter S. Barry;Karia Dibert;M. Dobbs;K. Karkare;J. Montgomery
通讯作者:
J. Montgomery
影响因子:
2
作者:
Shirokoff, E.;Barry, P. S.;Zmuidzinas, J.
通讯作者:
Zmuidzinas, J.
DOI:
10.3847/1538-4357/ac3edd
发表时间:
2021-09
期刊:
The Astrophysical Journal
影响因子:
--
作者:
Azadeh Moradinezhad Dizgah;G. Keating;K. Karkare;A. Crites;Shouvik Roy Choudhury
通讯作者:
Azadeh Moradinezhad Dizgah;G. Keating;K. Karkare;A. Crites;Shouvik Roy Choudhury