Presentation 2003/1/22
Performance of NbN HEB mixer with SiO heat sink
Shigehito Miki, Hironori Kataoka, Akira Kawakami, Yoshinori Uzawa, Zhen Wang,
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Abstract(in English) We propose a superconducting HEB mixer with an upper heat sink to improve the phonon diffusion efficiency in phonon cooled HEB mixers. First, we designed and fabricated a test-type NbN HEB mixer to investigate the cooling effect of the upper heat sink by measuring IF bandwidths of a mixer with and without heat sink. The SiO films for the upper dielectric heat sink were deposited on the top of the NbN strip. We observed the increase of IF bandwidth by depositing the SiO heat sink. Next, we fabricated actual used NbN HEB mixer with SiO heat sink. As the results of performance measurement, the IF bandwidth was 3.4 GHz, and the receiver noise temperature demonstrated 500 K at 600 GHz band.
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Keyword(in English) Hot electron bolometer / Phonon diffusion / IF bandwidth / THz receiver
Paper # SCE2002-36
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Committee SCE
Conference Date 2003/1/22(1days)
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Registration To Superconductive Electronics (SCE)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Performance of NbN HEB mixer with SiO heat sink
Sub Title (in English)
Keyword(1) Hot electron bolometer
Keyword(2) Phonon diffusion
Keyword(3) IF bandwidth
Keyword(4) THz receiver
1st Author's Name Shigehito Miki
1st Author's Affiliation Graduate School of Science and Technology,Kobe University:Kansai Advanced Research Center,Communications Research Laboratory()
2nd Author's Name Hironori Kataoka
2nd Author's Affiliation Graduate School of Science and Technology,Kobe University:Kansai Advanced Research Center,Communications Research Laboratory
3rd Author's Name Akira Kawakami
3rd Author's Affiliation Kansai Advanced Research Center,Communications Research Laboratory
4th Author's Name Yoshinori Uzawa
4th Author's Affiliation Kansai Advanced Research Center,Communications Research Laboratory
5th Author's Name Zhen Wang
5th Author's Affiliation Kansai Advanced Research Center,Communications Research Laboratory
Date 2003/1/22
Paper # SCE2002-36
Volume (vol) vol.102
Number (no) 612
Page pp.pp.-
#Pages 4
Date of Issue