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Shcherbatenko, M.; Lobanov, Y.; Semenov, A.; Kovalyuk, V.; Korneev, A.; Ozhegov, R.; Kaurova, N.; Voronov, B.; Goltsman, G. |
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Title |
Coherent detection of weak signals with superconducting nanowire single photon detector at the telecommunication wavelength |
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Conference Article |
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Year |
2017 |
Publication |
Proc. SPIE |
Abbreviated Journal |
Proc. SPIE |
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10229 |
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0G (1 to 12) |
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Keywords |
SSPD mixer, SNSPD, coherent detection, weak signal detection, superconducting nanostructures |
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Achievement of the ultimate sensitivity along with a high spectral resolution is one of the frequently addressed problems, as the complication of the applied and fundamental scientific tasks being explored is growing up gradually. In our work, we have investigated performance of a superconducting nanowire photon-counting detector operating in the coherent mode for detection of weak signals at the telecommunication wavelength. Quantum-noise limited sensitivity of the detector was ensured by the nature of the photon-counting detection and restricted by the quantum efficiency of the detector only. Spectral resolution given by the heterodyne technique and was defined by the linewidth and stability of the Local Oscillator (LO). Response bandwidth was found to coincide with the detector’s pulse width, which, in turn, could be controlled by the nanowire length. In addition, the system noise bandwidth was shown to be governed by the electronics/lab equipment, and the detector noise bandwidth is predicted to depend on its jitter. As have been demonstrated, a very small amount of the LO power (of the order of a few picowatts down to hundreds of femtowatts) was required for sufficient detection of the test signal, and eventual optimization could lead to further reduction of the LO power required, which would perfectly suit for the foreseen development of receiver matrices and the need for detection of ultra-low signals at a level of less-than-one-photon per second. |
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Spie |
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Prochazka, I.; Sobolewski, R.; James, R.B. |
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Photon counting applications |
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10.1117/12.2267724 |
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1201 |
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Vorobyov, V. V.; Kazakov, A. Y.; Soshenko, V. V.; Korneev, A. A.; Shalaginov, M. Y.; Bolshedvorskii, S. V.; Sorokin, V. N.; Divochiy, A. V.; Vakhtomin, Y. B.; Smirnov, K. V.; Voronov, B. M.; Shalaev, V. M.; Akimov, A. V.; Goltsman, G. N. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Superconducting detector for visible and near-infrared quantum emitters [Invited] |
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Journal Article |
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Year |
2017 |
Publication |
Opt. Mater. Express |
Abbreviated Journal |
Opt. Mater. Express |
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7 |
Issue |
2 |
Pages |
513-526 |
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Keywords |
SSPD, SNSPD |
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Further development of quantum emitter based communication and sensing applications intrinsically depends on the availability of robust single-photon detectors. Here, we demonstrate a new generation of superconducting single-photon detectors specifically optimized for the 500–1100 nm wavelength range, which overlaps with the emission spectrum of many interesting solid-state atom-like systems, such as nitrogen-vacancy and silicon-vacancy centers in diamond. The fabricated detectors have a wide dynamic range (up to 350 million counts per second), low dark count rate (down to 0.1 counts per second), excellent jitter (62 ps), and the possibility of on-chip integration with a quantum emitter. In addition to performance characterization, we tested the detectors in real experimental conditions involving nanodiamond nitrogen-vacancy emitters enhanced by a hyperbolic metamaterial. |
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2159-3930 |
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1234 |
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Peltonen, J. T.; Peng, Z. H.; Korneeva, Yu. P.; Voronov, B. M.; Korneev, A. A.; Semenov, A. V.; Gol'tsman, G. N.; Tsai, J. S; Astafiev, Oleg |
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Title |
Coherent dynamics and decoherence in a superconducting weak link |
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Journal Article |
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2016 |
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Physic. Rev. B, |
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Physic. Rev. B, |
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94 |
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180508 |
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RPLAB @ akorneev @ |
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1123 |
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Florya, I. N.; Korneeva, Y. P.; Sidorova, M. V.; Golikov, A. D.; Gaiduchenko, I. A.; Fedorov, G. E.; Korneev, A. A.; Voronov, B. M.; Goltsman, G. N.; Samartsev, V. V.; Vinogradov, E. A.; Naumov, A. V.; Karimullin, K. R. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Energy relaxtation and hot spot formation in superconducting single photon detectors SSPDs |
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Conference Article |
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Year |
2015 |
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EPJ Web of Conferences |
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EPJ Web of Conferences |
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103 |
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10004 (1 to 2) |
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SSPD, SNSPD |
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We have studied the mechanism of energy relaxation and resistive state formation after absorption of a single photon for different wavelengths and materials of single photon detectors. Our results are in good agreement with the hot spot model. |
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2100-014X |
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1351 |
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Hajenius, M.; Yang, Z. Q.; Gao, J. R.; Baselmans, J. J. A.; Klapwijk, T. M.; Voronov, B.; Gol'tsman, G. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Optimized sensitivity of NbN hot electron bolometer mixers by annealing |
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Journal Article |
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Year |
2007 |
Publication |
IEEE Trans. Appl. Supercond. |
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IEEE Trans. Appl. Supercond. |
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17 |
Issue |
2 |
Pages |
399-402 |
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NbN HEB mixers |
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We report that the heterodyne sensitivity of superconducting hot-electron bolometers (HEBs) increases by 25-30% after annealing at 85degC in high vacuum. The devices studied are twin-slot antenna coupled mixers with a small area NbN bridge of 1 mum times 0.15 mum, above which there is a SiO 2 passivation layer. The mixer noise temperature, gain, and resistance versus temperature curve of a HEB before and after annealing are compared and analysed. We show that the annealing reduces the intrinsic noise of the mixer by 37% and makes the superconducting transition of the bridge and the contacts sharper. We argue that the reduction ofthe noise is mainly due to the improvement of the transparency of the contact/film interface. The lowest receiver noise temperature of 700 K is measured at a local oscillator frequency of 1.63 THz and at a bath temperature of 4.2 K. |
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1051-8223 |
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1426 |
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