Records |
Author |
Cherednichenko, S.; Drakinskiy, V.; Baubert, J.; Krieg, J.-M.; Voronov, B.; Gol'tsman, G.; Desmaris, V. |
Title |
Gain bandwidth of NbN hot-electron bolometer terahertz mixers on 1.5 μm Si3N4 / SiO2 membranes |
Type |
Journal Article |
Year |
2007 |
Publication |
J. Appl. Phys. |
Abbreviated Journal |
J. Appl. Phys. |
Volume |
101 |
Issue |
12 |
Pages |
124508 (1 to 6) |
Keywords |
HEB, mixer, membrane |
Abstract |
The gain bandwidth of NbN hot-electron bolometer terahertz mixers on electrically thin Si3N4/SiO2 membranes was experimentally investigated and compared with that of HEB mixers on bulk substrates. A gain bandwidth of 3.5 GHz is achieved on bulk silicon, whereas the gain bandwidth is reduced down to 0.6–0.9 GHz for mixers on 1.5 μm Si3N4/SiO2 membranes. We show that application of a MgO buffer layer on the membrane extends the gain bandwidth to 3 GHz. The experimental data were analyzed using the film-substrate acoustic mismatch approach. |
Address |
|
Corporate Author |
|
Thesis |
|
Publisher |
|
Place of Publication |
|
Editor |
|
Language |
|
Summary Language |
|
Original Title |
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
0021-8979 |
ISBN |
|
Medium |
|
Area |
|
Expedition |
|
Conference |
|
Notes ![sorted by Notes field, descending order (down)](img/sort_desc.gif) |
|
Approved |
no |
Call Number |
|
Serial |
560 |
Permanent link to this record |
|
|
|
Author |
Kawamura, J.; Blundell, R.; Tong, C.-Y. E.; Papa, D. C.; Hunter, T. R.; Paine, S. N.; Patt, F.; Gol'tsman, G.; Cherednichenko, S.; Voronov, B.; Gershenzon, E. |
Title |
Superconductive hot-electron-bolometer mixer receiver for 800-GHz operation |
Type |
Journal Article |
Year |
2000 |
Publication |
IEEE Trans. Microw. Theory Techn. |
Abbreviated Journal |
IEEE Trans. Microw. Theory Techn. |
Volume |
48 |
Issue |
4 |
Pages |
683-689 |
Keywords |
NbN HEB mixers, LO power, local oscillator power, saturation, linearity, dynamic range |
Abstract |
In this paper, we describe a superconductive hot-electron-bolometer mixer receiver designed to operate in the partially transmissive 350-μm atmospheric window. The receiver employs an NbN thin-film microbridge as the mixer element, in which the main cooling mechanism of the hot electrons is through electron-phonon interaction. At a local-oscillator frequency of 808 GHz, the measured double-sideband receiver noise temperature is TRX=970 K, across a 1-GHz intermediate-frequency bandwidth centered at 1.8 GHz. We have measured the linearity of the receiver and the amount of local-oscillator power incident on the mixer for optimal operation, which is PLO≈1 μW. This receiver was used in making observations as a facility instrument at the Heinrich Hertz Telescope, Mt. Graham, AZ, during the 1998-1999 winter observing season. |
Address |
|
Corporate Author |
|
Thesis |
|
Publisher |
|
Place of Publication |
|
Editor |
|
Language |
|
Summary Language |
|
Original Title |
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
0018-9480 |
ISBN |
|
Medium |
|
Area |
|
Expedition |
|
Conference |
|
Notes ![sorted by Notes field, descending order (down)](img/sort_desc.gif) |
|
Approved |
no |
Call Number |
RPLAB @ lobanovyury @ |
Serial |
573 |
Permanent link to this record |
|
|
|
Author |
Ryabchun, S. A.; Tretyakov, I. V.; Finkel, M. I.; Maslennikov, S. N.; Kaurova, N. S.; Seleznev, V. A.; Voronov, B. M.; Gol'tsman, G. N. |
Title |
NbN phonon-cooled hot-electron bolometer mixer with additional diffusion cooling |
Type |
Conference Article |
Year |
2009 |
Publication |
Proc. 20th Int. Symp. Space Terahertz Technol. |
Abbreviated Journal |
Proc. 20th ISSTT |
Volume |
|
Issue |
|
Pages |
151-154 |
Keywords |
HEB, mixer, bandwidth, noise temperatue, in-situ contacts, in situ contacts |
Abstract |
|
Address |
|
Corporate Author |
|
Thesis |
|
Publisher |
|
Place of Publication |
Charlottesville, USA |
Editor |
|
Language |
|
Summary Language |
|
Original Title |
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
|
ISBN |
|
Medium |
|
Area |
|
Expedition |
|
Conference |
|
Notes ![sorted by Notes field, descending order (down)](img/sort_desc.gif) |
|
Approved |
no |
Call Number |
|
Serial |
590 |
Permanent link to this record |
|
|
|
Author |
Tretyakov, I. V.; Ryabchun, S. A.; Maslennikov, S. N.; Finkel, M. I.; Kaurova, N. S.; Seleznev, V. A.; Voronov, B. M.; Gol'tsman, G.N. |
Title |
NbN HEB mixer: fabrication, noise temperature reduction and characterization |
Type |
Conference Article |
Year |
2008 |
Publication |
Proc. Basic problems of superconductivity |
Abbreviated Journal |
|
Volume |
|
Issue |
|
Pages |
|
Keywords |
HEB, mixer, noise temperature, conversion gain bandwidth |
Abstract |
We demonstrate that in the terahertz region superconducting hot-electron mixers offer the lowest noise temperature, opening the possibility of using HTS's in the future to fabricate these devices. Specifically, a noise temperature of 950 K was measured for the receiver operating at 2.5 THz with a NbN HEB mixer, and a gain bandwidth of 6 GHz was measured at 300 GHz near Tc for the same mixer. |
Address |
|
Corporate Author |
|
Thesis |
|
Publisher |
|
Place of Publication |
Moscow-Zvenigorod |
Editor |
|
Language |
|
Summary Language |
|
Original Title |
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
|
ISBN |
|
Medium |
|
Area |
|
Expedition |
|
Conference |
|
Notes ![sorted by Notes field, descending order (down)](img/sort_desc.gif) |
|
Approved |
no |
Call Number |
|
Serial |
591 |
Permanent link to this record |
|
|
|
Author |
Ryabchun, S. A.; Tretyakov, I. V.; Pentin, I. V.; Kaurova, N. S.; Seleznev, V. A.; Voronov, B. M.; Finkel, M. I.; Maslennikov, S. N.; Gol'tsman, G. N. |
Title |
Low-noise wide-band hot-electron bolometer mixer based on an NbN film |
Type |
Journal Article |
Year |
2009 |
Publication |
Radiophys. Quant. Electron. |
Abbreviated Journal |
|
Volume |
52 |
Issue |
8 |
Pages |
576-582 |
Keywords |
HEB mixer, in-situ contacts, noise temperature, conversion gain bandwidth, diffusion cooling channel |
Abstract |
We develop and study a hot-electron bolometer mixer made of a two-layer NbN–Au film in situ deposited on a silicon substrate. The double-sideband noise temperature of the mixer is 750 K at a frequency of 2.5 THz. The conversion efficiency measurements show that at the superconducting transition temperature, the intermediate-frequency bandwidth amounts to about 6.5 GHz for a mixer 0.112 μm long. These record-breaking characteristics are attributed to the improved contacts between a sensitive element and a helical antenna and are reached due to using the in situ deposition of NbN and Au layers at certain stages of the process. |
Address |
|
Corporate Author |
|
Thesis |
|
Publisher |
|
Place of Publication |
|
Editor |
|
Language |
|
Summary Language |
|
Original Title |
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
Series Volume |
|
Series Issue |
|
Edition |
|
ISSN |
|
ISBN |
|
Medium |
|
Area |
|
Expedition |
|
Conference |
|
Notes ![sorted by Notes field, descending order (down)](img/sort_desc.gif) |
|
Approved |
no |
Call Number |
|
Serial |
599 |
Permanent link to this record |