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Moshkova, M. A.; Divochiy, A. V.; Morozov, P. V.; Antipov, A. V.; Vakhtomin, Yu. B.; Smirnov, K. V. |
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Title |
Characterization of topologies of superconducting photon number resolving detectors |
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Conference Article |
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Year |
2019 |
Publication |
Proc. 8th Int. Conf. Photonics and Information Optics |
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Proc. 8th Int. Conf. Photonics and Information Optics |
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465-466 |
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Keywords |
PNR SSPD |
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Comparative analysis for different topologies of superconducting single-photon detectors with ability to resolve up to 4 photons in a short pulse of IR radiation has been carry out. It was developed the detector with a system detection efficiency of ~ 85 % at λ = 1550 nm. The possibility of using such detector to restore photon statistics of a pulsed radiation source was demonstrated. |
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Russian |
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978-5-7262-2536-4 |
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http://fioconf.mephi.ru/files/2018/12/FIO2019-Sbornik.pdf |
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1803 |
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Morozov, P.; Lukina, M.; Shirmanova, M.; Divochiy, A.; Dudenkova, V.; Gol'tsman, G. N.; Becker, W.; Shcheslavskiy, V. I. |
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Title |
Singlet oxygen phosphorescence imaging by superconducting single-photon detector and time-correlated single-photon counting |
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Journal Article |
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Year |
2021 |
Publication |
Opt. Lett. |
Abbreviated Journal |
Opt. Lett. |
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46 |
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6 |
Pages |
1217-1220 |
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Keywords |
SSPD, SNSPD, applications |
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This Letter presents, to the best of our knowledge, a novel optical configuration for direct time-resolved measurements of luminescence from singlet oxygen, both in solutions and from cultured cells on photodynamic therapy. The system is based on the superconducting single-photon detector, coupled to the confocal scanner that is modified for the near-infrared measurements. The recording of a phosphorescence signal from singlet oxygen at 1270 nm has been done using time-correlated single-photon counting. The performance of the system is verified by measuring phosphorescence from singlet oxygen generated by the photosensitizers commonly used in photodynamic therapy: methylene blue and chlorin e6. The described system can be easily upgraded to the configuration when both phosphorescence from singlet oxygen and fluorescence from the cells can be detected in the imaging mode. Thus, co-localization of the signal from singlet oxygen with the areas inside the cells can be done. |
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English |
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0146-9592 |
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PMID:33720151 |
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1221 |
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Morozov, D. V.; Smirnov, K. V.; Smirnov, A. V.; Lyakhov, V. A.; Goltsman, G. N. |
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A millimeter-submillimeter phonon-cooled hot-electron bolometer mixer based on two-dimensional electron gas in an AlGaAs/GaAs heterostructure |
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Journal Article |
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2005 |
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Semicond. |
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Semicond. |
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39 |
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9 |
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1082-1086 |
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2D electron gas, AlGaAs/GaAs heterostructures, mixers |
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Experimental results obtained by studying the main characteristics of a millimeter-submillimeter wave mixer based on the hot-electron effect in a two-dimensional electron gas in a AlGaAs/GaAs heterostructure with a phonon-scattering cooling mechanism for charge carriers are reported. The gain bandwidth of the mixer is 4 GHz, the internal conversion losses are 13 dB, and the optimum local-oscillator power is 0.5 μW (for a mixer area of 1 μm2). It is shown that a millimeter-submillimeter-wave receiver with a noise temperature of 1900 K can be developed on the basis of a AlGaAs/GaAs mixer. This mixer also appears to be promising for use in array receiver elements. |
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1063-7826 |
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1463 |
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Mohan, N.; Minaeva, O.; Gol'tsman, G. N.; Nasr, M. B.; Saleh, B. E.; Sergienko, A. V.; Teich, M. C. |
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Title |
Photon-counting optical coherence-domain reflectometry using superconducting single-photon detectors |
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Journal Article |
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2008 |
Publication |
Opt. Express |
Abbreviated Journal |
Opt. Express |
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Volume |
16 |
Issue |
22 |
Pages |
18118-18130 |
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Keywords |
SSPD, SNSPD |
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We consider the use of single-photon counting detectors in coherence-domain imaging. Detectors operated in this mode exhibit reduced noise, which leads to increased sensitivity for weak light sources and weakly reflecting samples. In particular, we experimentally demonstrate the possibility of using superconducting single-photon detectors (SSPDs) for optical coherence-domain reflectometry (OCDR). These detectors are sensitive over the full spectral range that is useful for carrying out such imaging in biological samples. With counting rates as high as 100 MHz, SSPDs also offer a high rate of data acquisition if the light flux is sufficient. |
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Department of Biomedical Engineering, Boston University, Boston, MA 02215, USA. nm82@bu.edu |
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1094-4087 |
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PMID:18958090 |
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1407 |
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Minaeva, O.; Fraine, A.; Korneev, A.; Divochiy, A.; Goltsman, G.; Sergienko, A. |
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Title |
High resolution optical time-domain reflectometry using superconducting single-photon detectors |
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Conference Article |
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2012 |
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Frontiers in Opt. 2012/Laser Sci. XXVIII |
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Frontiers in Opt. 2012/Laser Sci. XXVIII |
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Fw3a.39 |
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SSPD, SNSPD, Photodetectors; Fiber characterization; Light beams; Optical time domain reflectometry; Photon counting; Single mode fibers; Single photon detectors; Superconductors |
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We discuss the advantages and limitations of single-photon optical time-domain reflectometry with superconducting single-photon detectors. The higher two-point resolution can be achieved due to superior timing performance of SSPDs in comparison with InGaAs APDs. |
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Optical Society of America |
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1237 |
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