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Author |
Moore, D.P.; Remedios, J. J.; Waterfall, A. M.; Burgess, A. |
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Title |
Measuring halocarbons from the MIPAS instrument |
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2004 |
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RPLAB @ s @ |
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441 |
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Author |
Koshelets, V. P. |
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Title |
Integrated superconducting submm receivers |
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2004 |
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Statue of the SIR program for SR&T (extension to 1 THz) |
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2004 |
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Koshelets, V. P.; Dmitriev, P. N.; Ermakov, A. B.; Filippenko, L. V.; Khudchenko, A. V.; Koryukin, O. V.; Torgashin, M. Yu.; Hoogeveen, R.; Vreeling, W. J.; Yagoubov, P. |
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Title |
SIR for TELIS (post-critical) review |
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2004 |
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Author |
Slysz, W.; Wegrzecki, M.; Papis, E.; Gol'tsman, G. N.; Verevkin, A.; Sobolewski, R. |
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Title |
A method of optimization of the NbN superconducting single-photon detector |
Type ![sorted by Type field, descending order (down)](img/sort_desc.gif) |
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2004 |
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INIS |
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INIS |
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36 |
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27 |
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1-2 |
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NbN SSPD, SNSPD |
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5-th International Symposium Ion Implantation and Other Applications of Ions and Electrons, ION |
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Reference num. 36060124 |
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1485 |
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Slysz, W.; Wegrzecki, M.; Bar, J.; Grabiec, P.; Gol'tsman, G. N.; Verevkin, M.; Sobolewski, R. |
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Title |
NbN superconducting single-photon detectors coupled with a communication fiber |
Type ![sorted by Type field, descending order (down)](img/sort_desc.gif) |
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2004 |
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INIS |
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INIS |
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37 |
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2 |
Pages |
1-2 |
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Keywords |
NbN SSPD, SNSPD |
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Stare Jablonki, Poland |
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8-th Electron Technology Conference ELTE |
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1486 |
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Verevkin, A.; Zhang, J.; Pearlman, A.; Slysz, W.; Sobolewski, Roman; Korneev, A.; Kouminov, P.; Okunev, O.; Chulkova, G.; Gol'tsman, G. |
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Title |
Ultimate sensitivity of superconducting single-photon detectors in the visible to infrared range |
Type ![sorted by Type field, descending order (down)](img/sort_desc.gif) |
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2004 |
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ResearchGate |
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ResearchGate |
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NbN SSPD, SNSPD |
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We present our quantum efficiency (QE) and noise equivalent power (NEP) measurements of the meandertype ultrathin NbN superconducting single-photon detector in the visible to infrared radiation range. The nanostructured devices with 3.5-nm film thickness demonstrate QE up to~ 10% at 1.3–1.55 µm wavelength, and up to 20% in the entire visible range. The detectors are sensitive to infrared radiation with the wavelengths down to~ 10 µm. NEP of about 2× 10-18 W/Hz1/2 was obtained at 1.3 µm wavelength. Such high sensitivity together with GHz-range counting speed, make NbN photon counters very promising for efficient, ultrafast quantum communications and another applications. We discuss the origin of dark counts in our devices and their ultimate sensitivity in terms of the resistive fluctuations in our superconducting nanostructured devices. |
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Not attributed to any publisher! File name: PR9VervekinSfin_f.doc; Author: JAOLEARY; Last modification date: 2004-02-26 |
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1751 |
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Author |
Hajenius, M.; Baselmans, J. J. A.; Gao, J. R.; Klapwijk, T. M.; de Korte, P. A. J.; Voronov, B.; Gol'tsman, G. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Low noise NbN superconducting hot electron bolometer mixers at 1.9 and 2.5 THz |
Type ![sorted by Type field, descending order (down)](img/sort_desc.gif) |
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2004 |
Publication |
Supercond. Sci. Technol. |
Abbreviated Journal |
Supercond. Sci. Technol. |
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17 |
Issue |
5 |
Pages |
S224-S228 |
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NbN HEB mixers |
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NbN phonon-cooled hot electron bolometer mixers (HEBs) have been realized with negligible contact resistance between the bolometer itself and the contact structure. Using a combination of in situ cleaning of the NbN film and the use of an additional superconducting interlayer of a 10 nm NbTiN layer between the Au of the contact structure and the NbN film superior noise temperatures have been obtained as low as 950 K at 2.5 THz and 750 K at 1.9 THz. Here we address in detail the DC characterization of these devices, the interface transparencies between the bolometers and the contacts and the consequences of these factors on the mixer performance. |
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0953-2048 |
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558 |
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Author |
Martin슠Harwit |
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The Herschel mission |
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2004 |
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Advances in Space Research |
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34 |
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3 |
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568-572 |
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RPLAB @ s @ herschel_mission |
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Author |
Semenov, Alexei; Richter, Heiko; Smirnov, Konstantin; Voronov, Boris; Gol'tsman, Gregory; Hübers, Heinz-Wilhelm |
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Title |
The development of terahertz superconducting hot-electron bolometric mixers |
Type ![sorted by Type field, descending order (down)](img/sort_desc.gif) |
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2004 |
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Supercond. Sci. Technol. |
Abbreviated Journal |
Supercond. Sci. Technol. |
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17 |
Issue |
5 |
Pages |
436-439 |
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NbN HEB mixers |
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We present recent advances in the development of NbN hot-electron bolometric (HEB) mixers for flying terahertz heterodyne receivers. Three important issues have been addressed: the quality of the source NbN films, the effect of the bolometer size on the spectral properties of different planar feed antennas, and the local oscillator (LO) power required for optimal operation of the mixer. Studies of the NbN films with an atomic force microscope indicated a surface structure that may affect the performance of the smallest mixers. Measured spectral gain and noise temperature suggest that at frequencies above 2.5 THz the spiral feed provides better overall performance than the double-slot feed. Direct measurements of the optimal LO power support earlier estimates made in the framework of the uniform mixer model. |
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