| Records |
| Author |
Semenov, A.; Haas, P.; Ilin, K.; Hubers, H.; Siegel, M.; Engel, A.; Smirnov, A. |
| Title |
Energy resolution and sensitivity of a superconducting quantum detector |
Type |
Journal Article |
| Year |
2007 |
Publication |
Phys. C: Supercond. |
Abbreviated Journal |
Phys. C: Supercond. |
| Volume |
460-462 |
Issue |
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Pages |
1491-1492 |
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| ISSN |
0921-4534 |
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no |
| Call Number |
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Serial |
535 |
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| Author |
Kroug, M.; Yagoubov, P.; Gol'tsman, G.; Kollberg, E. |
| Title |
NbN quasioptical phonon cooled hot electron bolometric mixers at THz frequencies |
Type |
Conference Article |
| Year |
1997 |
Publication |
Inst. Phys. Conf. Ser. |
Abbreviated Journal |
Inst. Phys. Conf. Ser. |
| Volume |
1 |
Issue |
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Pages |
405-408 |
| Keywords |
NbN HEB mixers |
| Abstract |
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| Address |
Veldhoven |
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Place of Publication |
Bristol |
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Edition |
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| ISSN |
0951-3248 |
ISBN |
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Conference |
3rd Eur. Conf. on Applied Superconductivity |
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Approved |
no |
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Serial |
1600 |
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| Author |
Yagoubov, P.; Kroug, M.; Merkel, H.; Kollberg, E.; Schubert, J.; Hubers, H. W.; Svechnikov, S.; Voronov, B.; Gol'tsman, G.; Wang, Z. |
| Title |
Hot electron bolometric mixers based on NbN films deposited on MgO substrates |
Type |
Conference Article |
| Year |
1999 |
Publication |
Inst. Phys. Conf. Ser. |
Abbreviated Journal |
Inst. Phys. Conf. Ser. |
| Volume |
167 |
Issue |
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Pages |
687-690 |
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Place of Publication |
Barcelona, Spain |
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4th Europ. Conf. on Appl. Superconductivity, Inst. Phys. Conf. Ser. |
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no |
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Serial |
297 |
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| Author |
Semenov, A.; Goltsman, G.; Korneev, A. |
| Title |
Quantum detection by current carrying superconducting film |
Type |
Journal Article |
| Year |
2001 |
Publication |
Phys. C: Supercond. |
Abbreviated Journal |
Phys. C: Supercond. |
| Volume |
351 |
Issue |
4 |
Pages |
349-356 |
| Keywords |
quantum detection, phase slip centers, quasiparticle diffusion |
| Abstract |
We describe a novel quantum detection mechanism in the superconducting film carrying supercurrent. The mechanism incorporates growing normal domain and breaking of superconductivity by the bias current. A single photon absorbed in the film creates transient normal spot that causes redistribution of the current and, consequently, increase of the current density in superconducting areas. When the current density exceeds the critical value, the film switches into resistive state and generates the voltage pulse. Analysis shows that a submicron-wide film of conventional low temperature superconductor operated in liquid helium may detect single far-infrared photon. The amplitude and duration of the voltage pulse are in the millivolt and picosecond range, respectively. The quantitative model is presented that allows simulation of the detector utilizing this detection mechanism. |
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0921-4534 |
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no |
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Serial |
507 |
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| Author |
Seki, T.; Shibata, H.; Takesue, H.; Tokura, Y.; Imoto, N. |
| Title |
Comparison of timing jitter between NbN superconducting single-photon detector and avalanche photodiode |
Type |
Journal Article |
| Year |
2010 |
Publication |
Phys. C |
Abbreviated Journal |
Phys. C |
| Volume |
470 |
Issue |
20 |
Pages |
1534-1537 |
| Keywords |
SSPD; APD; jitter |
| Abstract |
We report the pulse-to-pulse timing jitter measurement of a niobium nitride (NbN) superconducting single-photon detector (SSPD) and an InGaAs avalanche photodiode (APD) at 1550-nm wavelength. A direct comparison of their timing jitter was performed by using the same experimental configuration to measure both detectors. The measured jitter of the SSPD and the APD are 75 and 84 ps at full-width at half-maximum (FWHM), and 138 and 384 ps at full-width at tenth-maximum (FWTM), respectively. The jitter of the SSPD remains small at FWTM while that of APD is wide. We also estimated the transmission distances and secure key generation rates for fiber-based quantum key distribution (QKD) which uses these detectors. The estimated transmission distances of the APD are 86 km and 107 km with respect to 1 ns and 100 ps time windows, respectively, and those of the SSPD are 125 km and 172 km with respect to 1 ns and 100 ps time windows, respectively. This estimation indicates the SSPDЃfs advantages for QKD compared to the APD. |
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RPLAB @ akorneev @ |
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613 |
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