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 SM ISO690:2012PIMANOV, Dmitry, KUZMIN, L., CHIGINEV, A., PANKRATOV, A., REVIN, L.. Development of Dichroic 220/240 GHz Parallel Arrays of Cold-Electron Bolometers with Slot Antennas for LSPE project. In: The 12th international conference on intrinsic Josephson effect and horizons of superconducting spintronics, 22-25 octombrie 2021, Chişinău. Chişinău: 2021, p. 53. ISBN 978-9975-47-215-9. |
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| The 12th international conference on intrinsic Josephson effect and horizons of superconducting spintronics 2021 | ||||||
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Conferința "The 12th international conference on intrinsic Josephson effect and horizons of superconducting spintronics" Chişinău, Moldova, 22-25 octombrie 2021 | ||||||
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The samples of dichroic 220/240 GHz channels for the Large-Scale Polarization Explorer (LSPE) mission [1] were fabricated in Chalmers University of Technology. These samples consist of two parallel arrays of 32 Cold-Electron Bolometers (CEBs) [2-3] and slot antennas as on-chip filters for frequencies 220 and 240 GHz based on a 7*7 mm chip with substrate thickness of about 280 um. Measurements with black body power load are in progress in the dilution refrigerator at 50 to 300 mK temperatures. Measurements with YBCO-based oscillator [4] in cryostat are planned to investigate the response of these arrays in the frequency range from 200 to 300 GHz. Electron cooling from 300 to 150 mK was achieved for these samples. The current/power responsivity of the arrays is about 2*104 A/W at phonon temperature 300 mK. The obtained parameters and the shortcomings of the investigated samples are analyzed to improve the noise-equivalent power. |
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