| Records |
| Author |
Kahl, O.; Ferrari, S.; Kovalyuk, V.; Vetter, A.; Lewes-Malandrakis, G.; Nebel, C.; Korneev, A.; Goltsman, G.; Pernice, W. |
| Title |
Spectrally resolved single-photon imaging with hybrid superconducting – nanophotonic circuits |
Type |
Miscellaneous |
| Year |
2016 |
Publication |
arXiv |
Abbreviated Journal |
arXiv |
| Volume |
|
Issue  |
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Pages |
1-20 |
| Keywords |
waiveguide SSPD, SNSPD, imaging |
| Abstract |
The detection of individual photons is an inherently binary mechanism, revealing either their absence or presence while concealing their spectral information. For multi-color imaging techniques, such as single photon spectroscopy, fluorescence resonance energy transfer microscopy and fluorescence correlation spectroscopy, wavelength discrimination is essential and mandates spectral separation prior to detection. Here, we adopt an approach borrowed from quantum photonic integration to realize a compact and scalable waveguide-integrated single-photon spectrometer capable of parallel detection on multiple wavelength channels, with temporal resolution below 50 ps and dark count rates below 10 Hz. We demonstrate multi-detector devices for telecommunication and visible wavelengths and showcase their performance by imaging silicon vacancy color centers in diamond nanoclusters. The fully integrated hybrid superconducting-nanophotonic circuits enable simultaneous spectroscopy and lifetime mapping for correlative imaging and provide the ingredients for quantum wavelength division multiplexing on a chip. |
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no |
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Serial |
1334 |
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| Author |
Gayduchenko, I. A.; Fedorov, G. E.; Stepanova, T. S.; Titova, N.; Voronov, B. M.; But, D.; Coquillat, D.; Diakonova, N.; Knap, W.; Goltsman, G. N. |
| Title |
Asymmetric devices based on carbon nanotubes as detectors of sub-THz radiation |
Type |
Conference Article |
| Year |
2016 |
Publication |
J. Phys.: Conf. Ser. |
Abbreviated Journal |
J. Phys.: Conf. Ser. |
| Volume |
741 |
Issue |
|
Pages |
012143 (1 to 6) |
| Keywords |
carbon nanotubes, CNT |
| Abstract |
Demand for efficient terahertz (THz) radiation detectors resulted in intensive study of the asymmetric carbon nanostructures as a possible solution for that problem. In this work, we systematically investigate the response of asymmetric carbon nanodevices to sub-terahertz radiation using different sensing elements: from dense carbon nanotube (CNT) network to individual CNT. We conclude that the detectors based on individual CNTs both semiconducting and quasi-metallic demonstrate much stronger response in sub-THz region than detectors based on disordered CNT networks at room temperature. We also demonstrate the possibility of using asymmetric detectors based on CNT for imaging in the THz range at room temperature. Further optimization of the device configuration may result in appearance of novel terahertz radiation detectors. |
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Edition |
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| ISSN |
1742-6588 |
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no |
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Serial |
1336 |
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| Author |
Seliverstov, S. V.; Rusova, A. A.; Kaurova, N. S.; Voronov, B. M.; Goltsman, G. N. |
| Title |
Attojoule energy resolution of direct detector based on hot electron bolometer |
Type |
Conference Article |
| Year |
2016 |
Publication |
J. Phys.: Conf. Ser. |
Abbreviated Journal |
J. Phys.: Conf. Ser. |
| Volume |
741 |
Issue |
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Pages |
012165 (1 to 5) |
| Keywords |
NbN HEB detector |
| Abstract |
We characterize superconducting antenna-coupled NbN hot-electron bolometer (HEB) for direct detection of THz radiation operating at a temperature of 9.0 K. At signal frequency of 2.5 THz, the measured value of the optical noise equivalent power is 2.0×10-13 W-Hz-0.5. The estimated value of the energy resolution is about 1.5 aJ. This value was confirmed in the experiment with pulsed 1.55-μm laser employed as a radiation source. The directly measured detector energy resolution is 2 aJ. The obtained risetime of pulses from the detector is 130 ps. This value was determined by the properties of the RF line. These characteristics make our detector a device-of-choice for a number of practical applications associated with detection of short THz pulses. |
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| Publisher |
IOP Publishing |
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no |
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Seliverstov_2016 |
Serial |
1337 |
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| Author |
Fedorov, G. E.; Gaiduchenko, I. A.; Golikov, A. D.; Rybin, M. G.; Obraztsova, E. D.; Voronov, B. M.; Coquillat, D.; Diakonova, N.; Knap, W.; Goltsman, G. N.; Samartsev, V. V.; Vinogradov, E. A.; Naumov, A. V.; Karimullin, K. R. |
| Title |
Response of graphene based gated nanodevices exposed to THz radiation |
Type |
Conference Article |
| Year |
2015 |
Publication |
EPJ Web of Conferences |
Abbreviated Journal |
EPJ Web of Conferences |
| Volume |
103 |
Issue |
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Pages |
10003 (1 to 2) |
| Keywords |
graphene field-effect transistor, FET |
| Abstract |
In this work we report on the response of asymmetric graphene based devices to subterahertz and terahertz radiation. Our devices are made in a configuration of a field-effect transistor with conduction channel between the source and drain electrodes formed with a CVD-grown graphene. The radiation is coupled through a spiral antenna to source and top gate electrodes. Room temperature responsivity of our devices is close to the values that are attractive for commercial applications. Further optimization of the device configuration may result in appearance of novel terahertz radiation detectors. |
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Edition |
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| ISSN |
2100-014X |
ISBN |
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no |
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Serial |
1350 |
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Sidorova, M.; Semenov, A.; Korneev, A.; Chulkova, G.; Korneeva, Y.; Mikhailov, M.; Devizenko, A.; Kozorezov, A.; Goltsman, G. |
| Title |
Electron-phonon relaxation time in ultrathin tungsten silicon film |
Type |
Miscellaneous |
| Year |
2018 |
Publication |
arXiv |
Abbreviated Journal |
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| Volume |
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Issue |
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Pages |
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| Keywords |
WSi film |
| Abstract |
Using amplitude-modulated absorption of sub-THz radiation (AMAR) method, we studied electron-phonon relaxation in thin disordered films of tungsten silicide. We found a response time ~ 800 ps at critical temperature Tc = 3.4 K, which scales as minus 3 in the temperature range from 1.8 to 3.4 K. We discuss mechanisms, which can result in a strong phonon bottle-neck effect in a few nanometers thick film and yield a substantial difference between the measured time, characterizing response at modulation frequency, and the inelastic electron-phonon relaxation time. We estimate the electron-phonon relaxation time to be in the range ~ 100-200 ps at 3.4 K. |
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| Notes |
Duplicated as 1341 |
Approved |
no |
| Call Number |
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Serial |
1340 |
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| 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 |
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| Volume |
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Issue |
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Pages |
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| 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. |
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| Notes |
Duplicated as 1305 |
Approved |
no |
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Serial |
1341 |
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| Author |
Elezov, M. S.; Ozhegov, R. V.; Kurochkin, Y. V.; Goltsman, G. N.; Makarov, V. S.; Samartsev, V. V.; Vinogradov, E. A.; Naumov, A. V.; Karimullin, K. R. |
| Title |
Countermeasures against blinding attack on superconducting nanowire detectors for QKD |
Type |
Conference Article |
| Year |
2015 |
Publication |
EPJ Web Conf. |
Abbreviated Journal |
EPJ Web Conf. |
| Volume |
103 |
Issue |
|
Pages |
10002 (1 to 2) |
| Keywords |
SSPD, SNSPD, QKD |
| Abstract |
Nowadays, the superconducting single-photon detectors (SSPDs) are used in Quantum Key Distribution (QKD) instead of single-photon avalanche photodiodes. Recently bright-light control of the SSPD has been demonstrated. This attack employed a “backdoor” in the detector biasing technique. We developed the autoreset system which returns the SSPD to superconducting state when it is latched. We investigate latched state of the SSPD and define limit conditions for effective blinding attack. Peculiarity of the blinding attack is a long nonsingle photon response of the SSPD. It is much longer than usual single photon response. Besides, we need follow up response duration of the SSPD. These countermeasures allow us to prevent blind attack on SSPDs for Quantum Key Distribution. |
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2100-014X |
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no |
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Serial |
1352 |
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| Author |
Fedorov, G.; Kardakova, A.; Gayduchenko, I.; Voronov, B. M.; Finkel, M.; Klapwijk, T. M.; Goltsman, G. |
| Title |
Photothermoelectric response in asymmetric carbon nanotube devices exposed to sub-THz radiation |
Type |
Abstract |
| Year |
2014 |
Publication |
Proc. 25th Int. Symp. Space Terahertz Technol. |
Abbreviated Journal |
Proc. 25th Int. Symp. Space Terahertz Technol. |
| Volume |
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Issue |
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Pages |
71 |
| Keywords |
carbon nanotubes, CNT |
| Abstract |
This work reports on the voltage response of asymmetric carbon nanotube devices to sub-THz radiation at the frequency of 140 GHz. The devices contain CNT’s, which are over their length partially suspended and partially Van der Waals bonded to a SiO 2 substrate, causing a difference in thermal contact. Different heat sinking of CNTs by source and drain gives rise to temperature gradient and consequent thermoelectric power (TEP) as such a device is exposed to the sub-THz radiation. Sign of the DC signal, its power and gate voltage dependence observed at room temperature are consistent with this scenario. At liquid helium temperature the observed response is more complex. DC voltage signal of an opposite sign is observed in a narrow range of gate voltages at low temperatures and under low radiation power. We argue that this may indicate a true photovoltaic response from small gap (less than 10meV) CNT’s, an effect never reported before. While it is not clear if the observed effects can be used to develop efficient THz detectors we note that the responsivity of our devices exceeds that of CNT based devices in microwave or THz range reported before at room temperature. Besides at 4.2 K notable increase of the sample conductance (at least four-fold) is observed. Our recent results with asymmetric carbon nanotube devices response to THz radiation (2.5 THz) will also be presented. |
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no |
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Serial |
1361 |
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| Author |
Pernice, W. H. P.; Schuck, C.; Minaeva, O.; Li, M.; Goltsman, G. N.; Sergienko, A. V.; Tang, H. X. |
| Title |
High-speed and high-efficiency travelling wave single-photon detectors embedded in nanophotonic circuits |
Type |
Journal Article |
| Year |
2012 |
Publication |
Nat. Commun. |
Abbreviated Journal |
Nat. Commun. |
| Volume |
3 |
Issue |
|
Pages |
1325 (1 to 10) |
| Keywords |
waveguide SSPD |
| Abstract |
Ultrafast, high-efficiency single-photon detectors are among the most sought-after elements in modern quantum optics and quantum communication. However, imperfect modal matching and finite photon absorption rates have usually limited their maximum attainable detection efficiency. Here we demonstrate superconducting nanowire detectors atop nanophotonic waveguides, which enable a drastic increase of the absorption length for incoming photons. This allows us to achieve high on-chip single-photon detection efficiency up to 91% at telecom wavelengths, repeatable across several fabricated chips. We also observe remarkably low dark count rates without significant compromise of the on-chip detection efficiency. The detectors are fully embedded in scalable silicon photonic circuits and provide ultrashort timing jitter of 18 ps. Exploiting this high temporal resolution, we demonstrate ballistic photon transport in silicon ring resonators. Our direct implementation of a high-performance single-photon detector on chip overcomes a major barrier in integrated quantum photonics. |
| Address |
Department of Electrical Engineering, Yale University, New Haven, Connecticut 06511, USA |
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Edition |
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2041-1723 |
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| Notes |
PMID:23271658; PMCID:PMC3535416 |
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no |
| Call Number |
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Serial |
1375 |
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| Author |
Ryabchun, S.; Smirnov, A.; Pentin, I.; Vakhtomin, Yu.; Smirnov, K.; Kaurova, N.; Voronov, B.; Goltsman, G. |
| Title |
Superconducting single photon detector integrated with optical cavity |
Type |
Conference Article |
| Year |
2011 |
Publication |
Proc. MLPLIT |
Abbreviated Journal |
Proc. MLPLIT |
| Volume |
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Issue |
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Pages |
143-145 |
| Keywords |
NbN SSPD, cavity |
| Abstract |
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| Address |
Suzdal / Vladimir (Russia) |
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| Publisher |
Modern laser physics and laser-information technologies for science and manufacture |
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1st international russian-chinese conference / youthschool-workshop |
| Notes |
September 23-28, 2011 |
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no |
| Call Number |
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Serial |
1385 |
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| Author |
Maslennikova, A.; Larionov, P.; Ryabchun, S.; Smirnov, A.; Pentin, I.; Vakhtomin, Yu.; Smirnov, K.; Kaurova, N.; Voronov, B.; Goltsman, G. |
| Title |
Noise equivalent power and dynamic range of NBN hot-electron bolometers |
Type |
Conference Article |
| Year |
2011 |
Publication |
Proc. MLPLIT |
Abbreviated Journal |
Proc. MLPLIT |
| Volume |
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Issue |
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Pages |
146-148 |
| Keywords |
NbN HEB |
| Abstract |
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| Address |
Suzdal / Vladimir (Russia) |
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| Publisher |
Modern laser physics and laser-information technologies for science and manufacture |
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1st international russian-chinese conference / youthschool-workshop |
| Notes |
September 23-28, 2011 |
Approved |
no |
| Call Number |
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Serial |
1386 |
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| Author |
Korneev, A.; Korneeva, Y.; Florya, I.; Voronov, B.; Goltsman, G. |
| Title |
Spectral sensitivity of narrow strip NbN superconducting single-photon detector |
Type |
Conference Article |
| Year |
2011 |
Publication |
Proc. SPIE |
Abbreviated Journal |
Proc. SPIE |
| Volume |
8072 |
Issue |
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Pages |
80720G (1 to 9) |
| Keywords |
NbN SSPD, SNSPD |
| Abstract |
Superconducting single-photon detector (SSPD) is patterned from 4-nm-thick NbN film deposited on sapphire substrate as a 100-nm-wide strip. Due to its high detection efficiency, low dark counts, and picosecond timing jitter SSPD has become a competitor to the InGaAs avalanche photodiodes at 1550 nm and longer wavelengths. Although the SSPD is operated at liquid helium temperature its efficient single-mode fibre coupling enabled its usage in many applications ranging from single-photon sources research to quantum cryptography. In our strive to increase the detection efficiency at 1550 nm and longer wavelengths we developed and fabricated SSPD with the strip almost twice narrower compared to the standard 100 nm. To increase the voltage response of the device we utilized cascade switching mechanism: we connected 50-nm-wide and 10-μm-long strips in parallel covering the area of 10 μmx10 μm. Absorption of a photon breaks the superconductivity in a strip leading to the bias current redistribution between other strips followed their cascade switching. As the total current of all the strips about is 1 mA by the order of magnitude the response voltage of such an SSPD is several times higher compared to the traditional meander-shaped SSPDs. In middle infrared (about 3 μm wavelength) these devices have the detection efficiency several times higher compared to the traditional SSPDs. |
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SPIE |
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Editor |
Fiurásek, J.; Prochazka, I. |
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Photon Counting Applications, Quantum Optics, and Quantum Information Transfer and Processing III |
| Notes |
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Approved |
no |
| Call Number |
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Serial |
1387 |
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| Author |
Goltsman, G. |
| 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 |
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Pages |
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HEB, SSPD, SNSPD |
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| Address |
Avignon, France |
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| Notes |
Provided by the SAO/NASA Astrophysics Data System |
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no |
| Call Number |
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Serial |
1398 |
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| 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 |
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Pages |
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| 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. |
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no |
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1399 |
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| Author |
Baryshev, A. M.; Wild, W.; Likhachev, S. F.; Vdovin, V. F.; Goltsman, G. N.; Kardashev, N. S. |
| Title |
Main parameters and instrumentation of Millimetron space mission |
Type |
Abstract |
| Year |
2009 |
Publication |
Proc. 20th Int. Symp. Space Terahertz Technol. |
Abbreviated Journal |
Proc. 20th ISSTT |
| Volume |
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Issue |
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108 |
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SVLBI, Millimetron space observatory |
| Abstract |
Millimetron (official RosKosmos name ”Spectrum-M”) is a part of ambitious program called Spectrum intended to cover the whole electromagnetic spectrum with world class facilities. It is an approved mission included in Russian space program with the launch date in 2017..2019 time frame. The Millimetron satellite has a deployable 12 m diameter antenna with inner solid 4..6 m dish and a rim of petals. The mirror design is largely based on Radioastron mission concept that will be launched in 2009. If the antenna is passively cooled by radiation to open space, it would operate at approx. 50 K surface temperature, due to presence of a deployable three layer radiation screen. As a goal, there is a consideration of active cooling of antenna to 4 K, but this will depend on resources available to the project. Lagrangian libration point L2 considered for Millimetron orbit. There are four groups of scientific instruments envisioned: SVLBI instruments Space-Earth VLBI. It will allow to achieve unprecedented spatial resolution. Millimetron mission will attempt to achieve a mm/submm wave SVLBI. For that purpose, a SVLBI instrument covering selected ALMA bands and a standard VLBI band is envisioned, accompanied by a maser reference oscillator, a data digitizing and memory system, and a high speed data transmission link to ground. The ALMA bands can be extended to cover water lines if detector technology allows. Type of detector – heterodyne. Photometer/polarimeter. Recent progress in direct detector cameras with low spectral resolution, allows to propose a large format (5-10 kPixel) photometer camera on board of Millimetron mission. This camera can cover 0.1 – 2 THz region (with adequate amount of pixels per each subband). Wide band moderate resolution imaging spectrometer. Wide band moderate R = 1000 imaging spectrometer type instrument similar to SPICA SAFARI is planned, taking advantage of large cooled dish. It will cover the adequate spectral range allowable by antenna and will also work below 1 THz, as no ground instrument can have a cold main dish. High resolution spectrometer. For high resolution spectroscopy a heterodyne instrument is proposed, conceptually similar to HIFI on Herschel. This instrument will cover interesting frequency spots in 0.5..4 THz frequency range (using central part of antenna for higher frequency). It is sure that advances in LO and mixer technology will allow this frequency coverage. |
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