| Records |
| Author |
Korneeva, Y. P.; Vodolazov, D. Y.; Semenov, A. V.; Florya, I. N.; Simonov, N.; Baeva, E.; Korneev, A. A.; Goltsman, G. N.; Klapwijk, T. M. |
| Title |
Optical single photon detection in micron-scaled NbN bridges |
Type |
Miscellaneous |
| Year |
2018 |
Publication  |
arXiv |
Abbreviated Journal |
|
| Volume |
|
Issue |
|
Pages |
|
| Keywords |
SSPD |
| Abstract |
We demonstrate experimentally that single photon detection can be achieved in micron-wide NbN bridges, with widths ranging from 0.53 μm to 5.15 μm and for photon-wavelengths from 408 nm to 1550 nm. The microbridges are biased with a dc current close to the experimental critical current, which is estimated to be about 50 % of the theoretically expected depairing current. These results offer an alternative to the standard superconducting single-photon detectors (SSPDs), based on nanometer scale nanowires implemented in a long meandering structure. The results are consistent with improved theoretical modelling based on the theory of non-equilibrium superconductivity including the vortex-assisted mechanism of initial dissipation. |
| 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 |
Duplicated as 1303 |
Approved |
no |
| Call Number |
|
Serial |
1312 |
| Permanent link to this record |
| |
|
| |
| Author |
Sidorova, M. V.; Kozorezov, A. G.; Semenov, A. V.; Korneev, A. A.; Chulkova, G. M.; Korneeva, Y. P.; Mikhailov, M. Y.; Devizenko, A. Y.; Goltsman, G. N. |
| Title |
Non-bolometric bottleneck in electron-phonon relaxation in ultra-thin WSi film |
Type |
Miscellaneous |
| Year |
2018 |
Publication |
arXiv |
Abbreviated Journal |
|
| Volume |
|
Issue |
|
Pages |
|
| Keywords |
WSi films, diffusion constant, SSPD, SNSPD |
| Abstract |
We developed the model of the internal phonon bottleneck to describe the energy exchange between the acoustically soft ultrathin metal film and acoustically rigid substrate. Discriminating phonons in the film into two groups, escaping and nonescaping, we show that electrons and nonescaping phonons may form a unified subsystem, which is cooled down only due to interactions with escaping phonons, either due to direct phonon conversion or indirect sequential interaction with an electronic system. Using an amplitude-modulated absorption of the sub-THz radiation technique, we studied electron-phonon relaxation in ultrathin disordered films of tungsten silicide. We found an experimental proof of the internal phonon bottleneck. The experiment and simulation based on the proposed model agree well, resulting in tau{e-ph} = 140-190 ps at TC = 3.4 K, supporting the results of earlier measurements by independent techniques. |
| 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 |
Duplicated as 1305 |
Approved |
no |
| Call Number |
|
Serial |
1341 |
| Permanent link to this record |
| |
|
| |
| Author |
Pyatkov, F.; Khasminskaya, S.; Kovalyuk, V.; Hennrich, F.; Kappes, M. M.; Goltsman, G. N.; Pernice, W. H. P.; Krupke, R. |
| Title |
Sub-nanosecond light-pulse generation with waveguide-coupled carbon nanotube transducers |
Type |
Journal Article |
| Year |
2017 |
Publication |
Beilstein J. Nanotechnol. |
Abbreviated Journal |
Beilstein J. Nanotechnol. |
| Volume |
8 |
Issue |
|
Pages |
38-44 |
| Keywords |
carbon nanotubes; CNT; infrared; integrated optics devices; nanomaterials |
| Abstract |
Carbon nanotubes (CNTs) have recently been integrated into optical waveguides and operated as electrically-driven light emitters under constant electrical bias. Such devices are of interest for the conversion of fast electrical signals into optical ones within a nanophotonic circuit. Here, we demonstrate that waveguide-integrated single-walled CNTs are promising high-speed transducers for light-pulse generation in the gigahertz range. Using a scalable fabrication approach we realize hybrid CNT-based nanophotonic devices, which generate optical pulse trains in the range from 200 kHz to 2 GHz with decay times below 80 ps. Our results illustrate the potential of CNTs for hybrid optoelectronic systems and nanoscale on-chip light sources. |
| Address |
Department of Materials and Earth Sciences, Technische Universitat Darmstadt, Darmstadt 64287, Germany |
| 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 |
2190-4286 |
ISBN |
|
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
PMID:28144563; PMCID:PMC5238692 |
Approved |
no |
| Call Number |
RPLAB @ kovalyuk @ |
Serial |
1109 |
| Permanent link to this record |
| |
|
| |
| Author |
Glejm, A. V.; Anisimov, A. A.; Asnis, L. N.; Vakhtomin, Yu. B.; Divochiy, A. V.; Egorov, V. I.; Kovalyuk, V. V.; Korneev, A. A.; Kynev, S. M.; Nazarov, Yu. V.; Ozhegov, R. V.; Rupasov, A. V.; Smirnov, K. V.; Smirnov, M. A.; Goltsman, G. N.; Kozlov, S. A. |
| Title |
Quantum key distribution in an optical fiber at distances of up to 200 km and a bit rate of 180 bit/s |
Type |
Journal Article |
| Year |
2014 |
Publication |
Bulletin of the Russian Academy of Sciences. Physics |
Abbreviated Journal |
|
| Volume |
78 |
Issue |
3 |
Pages |
171-175 |
| Keywords |
SSPD, SNSPD, applications |
| Abstract |
An experimental demonstration of a subcarrier-wave quantum cryptography system with superconducting single-photon detectors (SSPDs) that distributes a secure key in a single-mode fiber at distance of 25 km with a bit rate of 800 kbit/s, a distance of 100 km with a bit rate of 19 kbit/s, and a distance of 200 km with a bit rate of 0.18 kbit/s is described. |
| 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 |
1062-8738 |
ISBN |
|
Medium |
|
| Area |
|
Expedition |
|
Conference |
|
| Notes |
|
Approved |
no |
| Call Number |
RPLAB @ kovalyuk @ |
Serial |
940 |
| Permanent link to this record |
| |
|
| |
| Author |
Minaeva, O.; Divochiy, A.; Korneev, A.; Sergienko, A. V.; Goltsman, G. N. |
| Title |
High speed infrared photon counting with photon number resolving superconducting single-photon detectors (SSPDs) |
Type |
Conference Article |
| Year |
2009 |
Publication |
CLEO/Europe – EQEC |
Abbreviated Journal |
CLEO/Europe – EQEC |
| Volume |
|
Issue |
|
Pages |
|
| Keywords |
SSPD, SNSPD |
| Abstract |
A review of development and characterization of the nanostructures consisting of several meander sections, all connected in parallel was presented. Such geometry leads to a significant decrease of the kinetic inductance, without a decrease of the SSPD active area. A new type of SSPDs possess the QE of large-active- area devices, but, simultaneously, allows achieving short response times and the GHz-counting rate. This new generation of superconducting detectors has another significant advantage for quantum key distribution, they have a photon number resolving capability and can distinguish more photons. |
| 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 |
|
Approved |
no |
| Call Number |
|
Serial |
1399 |
| Permanent link to this record |
