|
Records |
Links |
|
Author |
Ovchinnikov, Yu. N.; Varlamov, A. A. |
![find record details (via OpenURL) openurl](img/xref.gif)
|
|
Title |
Fluctuation-dissipative phenomena in a narrow superconducting channel carrying current below critical |
Type |
Journal Article |
|
Year |
2009 |
Publication |
arXiv |
Abbreviated Journal |
|
|
|
Volume |
0910.2659v1 |
Issue ![sorted by Issue field, descending order (down)](img/sort_desc.gif) |
|
Pages |
1-4 |
|
|
Keywords |
superconducting nanowire, resistance calculation |
|
|
Abstract |
The theory of current transport in a narrow superconducting channel accounting for thermal fluctuations is developed. These fluctuations result in the appearance of small but finite dissipation in the sample. The value of corresponding voltage is found as the function of temperature (close to transition temperature) and arbitrary bias current. It is demonstrated that the value of the activation energy (exponential factor in the Arrenius law) when current approaches to the critical one is proportional to (1-J/Jc)^(5/4). This result is in concordance with the one for the affine phenomenon of the Josephson current decay due to the thermal phase fluctuations, where the activation energy proportional (1-J/J_c)^(3/2)(the difference in the exponents is related to the additional current dependence of the order parameter). Found dependence of the activation energy on current explains the enormous discrepancy between the theoretically predicted before and the experimentally observed broadening of the resistive transition. |
|
|
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 |
arXiv:0910.2659v1; 4 pages, 3 figures |
Approved |
no |
|
|
Call Number |
|
Serial |
931 |
|
Permanent link to this record |
|
|
|
|
Author |
Khosropanah P.; Baryshev A.; Zhang W.; Jellema W.; Hovenier J.N.; Gao G.R.; Klapwijk T.M; Paveliev D.G.; Williams B.S.; Kumar S.; Hu Q.; Reno J.L.; Klein B.; Hesler J.L. |
|
|
Title |
Phase-locking of a 2.7-THz quantum cascade laser to a microwave reference |
Type |
Journal Article |
|
Year |
2009 |
Publication |
Optics Letters |
Abbreviated Journal |
|
|
|
Volume |
34 |
Issue ![sorted by Issue field, descending order (down)](img/sort_desc.gif) |
|
Pages |
2958-2960 |
|
|
Keywords |
|
|
|
Abstract |
We demonstrate the phase locking of a 2.7 THz metal–metal waveguide quantum cascade laser (QCL) to an external microwave signal. The reference is the 15th harmonic, generated by a semiconductor superlattice nonlinear device, of a signal at 182 GHz, which itself is generated by a multiplier chain (X12) from a
microwave synthesizer at ~ 15 GHz. Both laser and reference radiations are coupled into a bolometer mixer, resulting in a beat signal, which is fed into a phase-lock loop. The spectral analysis of the beat signal con-firms that the QCL is phase locked. This result opens the possibility to extend heterodyne interferometers into the far-infrared range. |
|
|
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 |
RPLAB @ atomics90 @ |
Serial |
966 |
|
Permanent link to this record |
|
|
|
|
Author |
Ozhegov, R. V.; Smirnov, A. V.; Vakhtomin, Yu. B.; Smirnov, K. V.; Divochiy, A. V.; Goltsman, G. N. |
![find book details (via ISBN) isbn](img/isbn.gif)
|
|
Title |
Ultrafast superconducting bolometer receivers for terahertz applications |
Type |
Abstract |
|
Year |
2009 |
Publication |
Proc. PIERS |
Abbreviated Journal |
Proc. PIERS |
|
|
Volume |
|
Issue ![sorted by Issue field, descending order (down)](img/sort_desc.gif) |
|
Pages |
867 |
|
|
Keywords |
HEB |
|
|
Abstract |
The research by the group of Moscow State Pedagogical University into the hot-electron phenomena in thin superconducting films has led to the development of new types of detectors and their use both in fundamental and applied studies. In this paper, we present the results of testing the terahertz HEB receiver systems based on ultrathin (∼ 4 nm) NbN and MoRe detectors with a response time of 50 ps and 1 ns, respectively. We have developed three types of devices which differ in the way a terahertz signal is coupled to the detector and cover the following ranges: 0.3–3 THz, 0.1–30 THz and 25–70 THz. In the case of the receiving system optimized for 0.3–3 THz, the sensitive element (a strip of asuperconductor with planar dimensions of 0.2μm (length) by 1.7μm (width)) was integrated witha planar broadband log-spiral antenna. For additional focusing ofthe incident radiation a silicon hyperhemispherical lens was used. For the 0.1–30 THz receivingsystem, the sensitive element was patterned as parallel strips(2μm wide each) filling an area of 500×500μm2with a filling factor of 0.5. In the receivingsystem of this type we used direct coupling of the incident radiation to the sensitive element. Inthe 25–70 THz range (detector type 2/2a in Table 1) we used a square-shaped superconductingdetector with planar dimensions of 10×10μm2. Incident radiation was coupled to the detectorwith the use of a germanium hyperhemispherical lens.The response time of the above receiving systems is determined by the cooling rate of the hotelectrons in the film. That depends on the electron-phonon interaction time, which is less forultrathin NbN than in MoRe. |
|
|
Address |
Moscow, Russia |
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
The Electromagnetics Academy |
Place of Publication |
777 Concord Avenue, Suite 207 Cambridge, MA 02138 |
Editor |
|
|
|
Language |
|
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
1559-9450 |
ISBN |
978-1-934142-09-7 |
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
|
Approved |
no |
|
|
Call Number |
RPLAB @ sasha @ ozhegovultrafast |
Serial |
1022 |
|
Permanent link to this record |
|
|
|
|
Author |
Елезов, М. С.; Корнеев, А. А; Дивочий, А. В.; Гольцман, Г. Н. |
![find book details (via ISBN) isbn](img/isbn.gif)
|
|
Title |
Сверхпроводящие однофотонные детекторы с разрешением числа фотонов |
Type |
Conference Article |
|
Year |
2009 |
Publication |
Науч. сессия МИФИ |
Abbreviated Journal |
Науч. сессия МИФИ |
|
|
Volume |
|
Issue ![sorted by Issue field, descending order (down)](img/sort_desc.gif) |
|
Pages |
47-58 |
|
|
Keywords |
PNR SSPD, SNSPD |
|
|
Abstract |
|
|
|
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 |
978-5-7262-1042-1 |
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
УДК 533.14(06)+004.056(06) Фотоника и информационная оптика |
Approved |
no |
|
|
Call Number |
RPLAB @ sasha @ елезов2009сверхпроводящие |
Serial |
1029 |
|
Permanent link to this record |
|
|
|
|
Author |
Smirnov, K. V.; Vakhtomin, Yu. B.; Divochiy, A. V.; Ozhegov, R. V.; Pentin, I. V.; Slivinskaya, E. V.; Tarkhov, M. A.; Gol’tsman, G. N. |
![find record details (via OpenURL) openurl](img/xref.gif)
|
|
Title |
Single-photon detectors for the visible and infrared parts of the spectrum based on NbN nanostructures |
Type |
Abstract |
|
Year |
2009 |
Publication |
Proc. Progress In Electromagnetics Research Symp. |
Abbreviated Journal |
Proc. Progress In Electromagnetics Research Symp. |
|
|
Volume |
|
Issue ![sorted by Issue field, descending order (down)](img/sort_desc.gif) |
|
Pages |
863-864 |
|
|
Keywords |
SSPD, SNSPD |
|
|
Abstract |
The research by the group of Moscow State Pedagogical University into the hot-electron phenomena in thin superconducting films has led to the development of new types ofdetectors [1, 2] and their use both in fundamental and applied studies [3–6]. In this paper, wepresent the results of the development and fabrication of receiving systems for the visible andinfrared parts of the spectrum optimised for use in telecommunication systems and quantumcryptography. |
|
|
Address |
|
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
Moscow, Russia |
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 |
RPLAB @ sasha @ smirnovsession |
Serial |
1050 |
|
Permanent link to this record |
|
|
|
|
Author |
Driessen, E. F. C.; Braakman, F. R.; Reiger, E. M.; Dorenbos, S. N.; Zwiller, V.; de Dood, M. J. A. |
![find record details (via OpenURL) openurl](img/xref.gif)
|
|
Title |
Impedance model for the polarization-dependent optical absorption of superconducting single-photon detectors |
Type |
Journal Article |
|
Year |
2009 |
Publication |
Eur. Phys. J. Appl. Phys. |
Abbreviated Journal |
|
|
|
Volume |
47 |
Issue ![sorted by Issue field, descending order (down)](img/sort_desc.gif) |
|
Pages |
10701 |
|
|
Keywords |
SSPD, SNSPD |
|
|
Abstract |
We measured the single-photon detection efficiency of NbN superconducting single-photon detectors as a function of the polarization state of the incident light for different wavelengths in the range from 488 nm to 1550 nm. The polarization contrast varies from ~% at 488 nm to~0% at 1550 nm, in good agreement with numerical calculations. We use an optical-impedance model to describe the absorption for polarization parallel to the wires of the detector. For the extremely lossy NbN material, the absorption can be kept constant by keeping the product of layer thickness and filling factor constant. As a consequence, the maximum possible absorption is independent of filling factor. By illuminating the detector through the substrate, an absorption efficiency of ~0% can be reached for a detector on Si or GaAs, without the need for an optical cavity. |
|
|
Address |
|
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
|
Place of Publication |
|
Editor |
|
|
|
Language |
English |
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 |
RPLAB @ alex_kazakov @ |
Serial |
1062 |
|
Permanent link to this record |
|
|
|
|
Author |
Флоря, И. Н. |
![find record details (via OpenURL) openurl](img/xref.gif)
|
|
Title |
Ультрабыстрый однофотонный детектор для оптических применений |
Type |
Conference Article |
|
Year |
2009 |
Publication |
Науч. сессия МИФИ |
Abbreviated Journal |
Науч. сессия МИФИ |
|
|
Volume |
|
Issue ![sorted by Issue field, descending order (down)](img/sort_desc.gif) |
|
Pages |
45-46 |
|
|
Keywords |
SSPD |
|
|
Abstract |
Представлен сверхпроводниковый однофотонный детектор (SSPD) на основе ультратонкой пленки NbN, обладающий рекордным быстродействием. Активный элемент выполнен в виде N сверхпроводящих полосок соединенных параллельно, покрывающих площадку размером 10 мкм х 10 мкм. Для SSPD с N=12 длительность импульса напряжения составляет 200 пс. Полученные результаты открывают путь к детекторам обладающими скоростью счета свыше 1 ГГц, что делает SSPDs весьма привлекательными во многих применениях, в частности для квантовой криптографии. SSPD хорошо согласуется с оптоволокном и легко может быть интегрирован в полностью готовую для работы приемную систему. |
|
|
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 |
978-5-7262-1042-1 |
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
УДК 533.14(06)+004.056(06) Фотоника и информационная оптика |
Approved |
no |
|
|
Call Number |
|
Serial |
1145 |
|
Permanent link to this record |
|
|
|
|
Author |
Fiore, A.; Marsili, F.; Bitauld, D.; Gaggero, A.; Leoni, R.; Mattioli, F.; Divochiy, A.; Korneev, A.; Seleznev, V.; Kaurova, N.; Minaeva, O.; Gol’tsman, G. |
![goto web page (via DOI) doi](img/doi.gif)
|
|
Title |
Counting photons using a nanonetwork of superconducting wires |
Type |
Conference Article |
|
Year |
2009 |
Publication |
Nano-Net |
Abbreviated Journal |
|
|
|
Volume |
|
Issue ![sorted by Issue field, descending order (down)](img/sort_desc.gif) |
|
Pages |
120-122 |
|
|
Keywords |
SSPD, SNSPD |
|
|
Abstract |
We show how the parallel connection of photo-sensitive superconducting nanowires can be used to count the number of photons in an optical pulse, down to the single-photon level. Using this principle we demonstrate photon-number resolving detectors with unprecedented sensitivity and speed at telecommunication wavelengths. |
|
|
Address |
|
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
Springer Berlin Heidelberg |
Place of Publication |
Berlin, Heidelberg |
Editor |
Cheng, M. |
|
|
Language |
|
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
978-3-642-02427-6 |
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
|
Approved |
no |
|
|
Call Number |
10.1007/978-3-642-02427-6_20 |
Serial |
1242 |
|
Permanent link to this record |
|
|
|
|
Author |
Смирнов, Константин Владимирович |
![find record details (via OpenURL) openurl](img/xref.gif)
|
|
Title |
Создание приборов на сверхпроводниковых счетчиках фотонов и методов диагностики КМОП микросхем, гетероструктур и лазеров на квантовых точках |
Type |
Report |
|
Year |
2009 |
Publication |
|
Abbreviated Journal |
|
|
|
Volume |
|
Issue ![sorted by Issue field, descending order (down)](img/sort_desc.gif) |
|
Pages |
|
|
|
Keywords |
NbN SSPD |
|
|
Abstract |
Этап №1 (дата окончания: 30.09.2009)
Разработана методика изготовления сверхпроводниковых однофотонных детекторов (SSPD) с монокристаллической структурой пленки сверхмалой толщины. Изготовлены экспериментальные образцы сверхпроводниковых однофотонных детекторов (SSPD). Разработана методика пакетирования сверхпроводникового однофотонного детектора в оптический узел с одномодовым оптоволокном. Изготовлены экспериментальные образцы приемных модулей на основе однофотонных сверхпроводниковых детекторов из NbN-нанопленок.
Этап №2 (дата окончания: 28.10.2009)
Разработаны методы диагностики КМОП микросхем, гетероструктур и лазеров на квантовых точках и методика измерения мощности излучения полупроводниковых лазеров на квантовых точках с использованием сверхпроводниковых однофотонных детекторов (SSPD). Проведена технико-экономическая оценка рыночного потенциала полученных результатов. |
|
|
Address |
|
|
|
Corporate Author |
|
Thesis |
|
|
|
Publisher |
Министерство образования и науки РФ |
Place of Publication |
|
Editor |
|
|
|
Language |
Russian |
Summary Language |
|
Original Title |
|
|
|
Series Editor |
|
Series Title |
|
Abbreviated Series Title |
|
|
|
Series Volume |
|
Series Issue |
|
Edition |
|
|
|
ISSN |
|
ISBN |
|
Medium |
|
|
|
Area |
|
Expedition |
|
Conference |
|
|
|
Notes |
Отчет о НИР/НИОКР; Министерство образования и науки РФ; Номер гранта (контракта): 02.513.11.3446; Дата гранта (контракта): 03.06.2009 |
Approved |
no |
|
|
Call Number |
|
Serial |
1828 |
|
Permanent link to this record |
|
|
|
|
Author |
Goltsman, G. |
![find record details (via OpenURL) openurl](img/xref.gif)
|
|
Title |
Superconducting NbN hot-electron bolometer mixer, direct detector and single-photon counter: from devices to systems |
Type |
Report |
|
Year |
2009 |
Publication |
2-nd Int. Conf. EUROFLUX |
Abbreviated Journal |
2-nd Int. Conf. EUROFLUX |
|
|
Volume |
|
Issue ![sorted by Issue field, descending order (down)](img/sort_desc.gif) |
|
Pages |
|
|
|
Keywords |
HEB, SSPD, SNSPD |
|
|
Abstract |
|
|
|
Address |
Avignon, France |
|
|
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 |
Provided by the SAO/NASA Astrophysics Data System |
Approved |
no |
|
|
Call Number |
|
Serial |
1398 |
|
Permanent link to this record |