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Milostnaya, I.; Korneev, A.; Tarkhov, M.; Divochiy, A.; Minaeva, O.; Seleznev, V.; Kaurova, N.; Voronov, B.; Okunev, O.; Chulkova, G.; Smirnov, K.; Gol’tsman, G. |
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Title |
Superconducting single photon nanowire detectors development for IR and THz applications |
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Journal Article |
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2008 |
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J. Low Temp. Phys. |
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J. Low Temp. Phys. |
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151 |
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1-2 |
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591-596 |
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NbN SSPD, SNSPD |
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We present our progress in the development of superconducting single-photon detectors (SSPDs) based on meander-shaped nanowires made from few-nm-thick superconducting films. The SSPDs are operated at a temperature of 2–4.2 K (well below T c ) being biased with a current very close to the nanowire critical current at the operation temperature. To date, the material of choice for SSPDs is niobium nitride (NbN). Developed NbN SSPDs are capable of single photon counting in the range from VIS to mid-IR (up to 6 μm) with a record low dark counts rate and record-high counting rate. The use of a material with a low transition temperature should shift the detectors sensitivity towards longer wavelengths. We present state-of-the art NbN SSPDs as well as the results of our recent approach to expand the developed SSPD technology by the use of superconducting materials with lower T c , such as molybdenum rhenium (MoRe). MoRe SSPDs first were made and tested; a single photon response was obtained. |
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0022-2291 |
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1244 |
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Korneev, A. A.; Divochiy, A. V.; Vakhtomin, Yu. B.; Korneeva, Yu. P.; Larionov, P. A.; Manova, N. N.; Florya, I. N.; Trifonov, A. V.; Voronov, B. M.; Smirnov, K. V.; Semenov, A. V.; Chulkova, G. M.; Goltsman, G. N. |
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Title |
IR single-photon receiver based on ultrathin NbN superconducting film |
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Journal Article |
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2013 |
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Rus. J. Radio Electron. |
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Rus. J. Radio Electron. |
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5 |
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SSPD, SNSPD |
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We present our recent results in research and development of superconducting single-photon detector (SSPD). We achieved the following performance improvement: first, we developed and characterized SSPD integrated in optical cavity and enabling its illumination from the face side, not through the substrate, second, we improved the quantum efficiency of the SSPD at around 3 μm wavelength by reduction of the strip width to 40 nm, and, finally, we improved the detection efficiency of the SSPD-based single-photon receiver system up to 20% at 1550 nm and extended its wavelength range beyond 1800 nm by the usage of the fluoride ZBLAN fibres. |
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Russian |
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8 pages |
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RPLAB @ sasha @ korneevir |
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1043 |
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Korneev, A.; Divochiy, A.; Tarkhov, M.; Minaeva, O.; Seleznev, V.; Kaurova, N.; Voronov, B.; Okunev, O.; Chulkova, G.; Milostnaya, I.; Smirnov, K.; Gol’tsman, G. |
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Superconducting NbN-nanowire single-photon detectors capable of photon number resolving |
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Conference Article |
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2008 |
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Supercond. News Forum |
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Supercond. News Forum |
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PNR SSPD, SNSPD |
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We present our latest generation of ultra-fast superconducting NbN single-photon detectors (SSPD) capable of photon-number resolving (PNR). The novel SSPDs combine 10 μm x 10 μm active area with low kinetic inductance and PNR capability. That resulted in significantly reduced photoresponse pulse duration, allowing for GHz counting rates. The detector’s response magnitude is directly proportional to the number of incident photons, which makes this feature easy to use. We present experimental data on the performance of the PNR SSPDs. These detectors are perfectly suited for fibreless free-space telecommunications, as well as for ultra-fast quantum cryptography and quantum computing. |
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Reference No. ST34, paper # 012307, eventually not pulished (skipped) at https://iopscience.iop.org/issue/0953-2048/21/1 |
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RPLAB @ sasha @ korneevsuperconducting |
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1046 |
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Sidorova, Maria V.; Divochiy, Alexander V.; Vakhtomin, Yury B.; Smirnov, Konstantin V. |
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Title |
Ultrafast superconducting single-photon detector with a reduced active area coupled to a tapered lensed single-mode fiber |
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2015 |
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J. Nanophoton. |
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9 |
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1 |
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093051 |
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SSPD, SNSPD |
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This paper presents an ultrafast niobium nitride (NbN) superconducting single-photon detector (SSPD) with an active area of 3×3 μm2 that offers better timing performance metrics than the previous SSPD with an active area of 7×7 μm2. The improved SSPD demonstrates a record timing jitter (<25 ps), an ultrashort recovery time (<2 ns), an extremely low dark count rate, and a high detection efficiency in a wide spectral range from visible part to near infrared. The record parameters were obtained due to the development of a new technique providing effective optical coupling between a detector with a reduced active area and a standard single-mode telecommunication fiber. The advantages of the new approach are experimentally confirmed by taking electro-optical measurements. |
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1934-2608 |
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10.1117/1.JNP.9.093051 |
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RPLAB @ sasha @ |
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1052 |
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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. |
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Title |
Single-photon detectors for the visible and infrared parts of the spectrum based on NbN nanostructures |
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2009 |
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Proc. Progress In Electromagnetics Research Symp. |
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Proc. Progress In Electromagnetics Research Symp. |
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863-864 |
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SSPD, SNSPD |
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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. |
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Moscow, Russia |
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RPLAB @ sasha @ smirnovsession |
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1050 |
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