Study of IF Bandwidth of MgB Phonon-Cooled Hot-Electron Bolometer Mixers

被引：14

作者：

Bevilacqua, Stella ^{[1
]}

Cherednichenko, Sergey ^{[1
]}

Drakinskiy, Vladimir ^{[1
]}

Shibata, Hiroyuki ^{[2
]}

Tokura, Yasuhiro ^{[2
]}

Stake, Jan ^{[1
]}

机构：

[1] Chalmers Univ Technol, Dept Microtechnol & Nanosci MC2, SE-41296 Gothenburg, Sweden

[2] Nippon Telegraph & Tel Corp, Basic Res Labs, Atsugi, Kanagawa 2430198, Japan

来源：

IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY | 2013年 / 3卷 / 04期

基金：

瑞典研究理事会; 欧洲研究理事会;

关键词：

Bolometer; MgB; mixers; gain bandwidth; superconductor; FABRICATION;

D O I：

10.1109/TTHZ.2013.2252266

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A noise bandwidth (NBW) of 6-7 GHz was obtained for hot-electron bolometer (HEB) mixers made of 10 nm MgB2 films. A systematic investigation of the (IF) gain bandwidth as a function of the MgB2 film thickness (30, 15, and 10 nm) is also presented. The gain bandwidth (GBW) of 3.4 GHz was measured for a 10 nm film, corresponding to a mixer time constant of 47 ps. For 10 nm films a reduction of the GBW was observed with the reduction of the critical temperature (T-c). Experimental data were analyzed using the two-temperature model. From the theoretical analysis, the electron-phonon time (tau(e-ph)) -, the phonon escape time (tau(esc)) and the electron and phonon specific heats (c(e), c(ph)) were extrapolated giving the first model for HEB mixers of MgB2 films.

引用

页码：409 / 415

页数：7

共 33 条

[1] Low noise MgB2 terahertz hot-electron bolometer mixers [J].

Bevilacqua, S. ;

Cherednichenko, S. ;

Drakinskiy, V. ;

Stake, J. ;

Shibata, H. ;

Tokura, Y. .

APPLIED PHYSICS LETTERS, 2012, 100 (03)

[2]

Bevilacqua S., 2011, P 36 INFR MILL THZ W, P1

[3]

Blakemore J.S., 1985, SOLID STATE PHYS

[4] Terahertz mixing in MgB2 microbolometers [J].

Cherednichenko, S. ;

Drakinskiy, V. ;

Ueda, K. ;

Naito, M. .

APPLIED PHYSICS LETTERS, 2007, 90 (02)

[5] Terahertz superconducting hot-electron bolometer mixers [J].

Cherednichenko, S ;

Khosropanah, P ;

Kollberg, E ;

Kroug, M ;

Merkel, H .

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2002, 372 :407-415

[6]

Cherednichenko S., 2001, P 12 INT S SPAC THZ

[7] Hot-electron bolometer terahertz mixers for the Herschel Space Observatory [J].

Cherednichenko, Sergey ;

Drakinskiy, Vladimir ;

Berg, Therese ;

Khosropanah, Pourya ;

Kollberg, Erik .

REVIEW OF SCIENTIFIC INSTRUMENTS, 2008, 79 (03)

[8] The Herschel-Heterodyne Instrument for the Far-Infrared (HIFI) [J].

De Graauw, Th. ;

Helmich, F. P. ;

Phillips, T. G. ;

Stutzki, J. ;

Caux, E. ;

Whyborn, N. D. ;

Dieleman, P. ;

Roelfsema, P. R. ;

Aarts, H. ;

Assendorp, R. ;

Bachiller, R. ;

Baechtold, W. ;

Barcia, A. ;

Beintema, D. A. ;

Belitsky, V. ;

Benz, A. O. ;

Bieber, R. ;

Boogert, A. ;

Borys, C. ;

Bumble, B. ;

Cais, P. ;

Caris, M. ;

Cerulli-Irelli, P. ;

Chattopadhyay, G. ;

Cherednichenko, S. ;

Ciechanowicz, M. ;

Coeur-Joly, O. ;

Comito, C. ;

Cros, A. ;

de Jonge, A. ;

de Lange, G. ;

Delforges, B. ;

Delorme, Y. ;

den Boggende, T. ;

Desbat, J. -M. ;

Diez-Gonzalez, C. ;

Di Giorgio, A. M. ;

Dubbeldam, L. ;

Edwards, K. ;

Eggens, M. ;

Erickson, N. ;

Evers, J. ;

Fich, M. ;

Finn, T. ;

Franke, B. ;

Gaier, T. ;

Gal, C. ;

Gao, J. R. ;

Gallego, J. -D. ;

Gauffre, S. .

ASTRONOMY & ASTROPHYSICS, 2010, 518

[9] CONVERSION GAIN AND NOISE OF NIOBIUM SUPERCONDUCTING HOT-ELECTRON-MIXERS [J].

EKSTROM, H ;

KARASIK, BS ;

KOLLBERG, EL ;

YNGVESSON, KS .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1995, 43 (04) :938-947

[10]

Gershenzon E. M., 1990, SOV PHYS SUPERCOND, V3, P1582

← 1 2 3 4 →