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Słysz, W., Węgrzecki, M., Bar, J., Grabiec, P., Gol'tsman, G. N., Verevkin, A., et al. (2005). NbN superconducting single-photon detector coupled with a communication fiber. Elektronika : konstrukcje, technologie, zastosowania, 46(6), 51–52.
Abstract: We present novel superconducting single-photon detectors (SSPDs), based on ultrathin NbN films, designed for fiber-based quantum communications (lambda = 1.3 žm and 1.55 žm). For fiber-based operation, our SSPDs contain a special micromechanical construction integrated with the NbN structure, which enables efficient and mechanically very stabile fiber coupling. The detectors combine GHz counting rate, high quantum efficiency and very low level of dark counts. At 1.3 – 1.55 žm wavelength range our detector exhibits a quantum efficiency up to 10%.
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Slysz, W., Wegrzecki, M., Papis, E., Gol'tsman, G. N., Verevkin, A., & Sobolewski, R. (2004). A method of optimization of the NbN superconducting single-photon detector (Vol. 36).
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Slysz, W., Wegrzecki, M., Bar, J., Grabiec, P., Gol'tsman, G. N., Verevkin, M., et al. (2004). NbN superconducting single-photon detectors coupled with a communication fiber (Vol. 37).
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Zhang, J., Pearlman, A., Slysz, W., Verevkin, A., Sobolewski, R., Okunev, O., et al. (2003). Infrared picosecond superconducting single-photon detectors for CMOS circuit testing. In CLEO/QELS (Cmv4). Optical Society of America.
Abstract: Novel, NbN superconducting single-photon detectors have been developed for ultrafast, high quantum efficiency detection of single quanta of infrared radiation. Our devices have been successfully implemented in a commercial VLSI CMOS circuit testing system.
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Verevkin, A., Gershenzon, E. M., Gol'tsman, G. N., Ptitsina, N. G., Chulkova, G. M., Smirnov, K. S., et al. (2002). Direct measurements of energy relaxation times in two-dimensional structures under quasi-equilibrium conditions. In Mater. Sci. Forum (Vol. 384-3, pp. 107–116).
Abstract: A new microwave technique was successfully applied for direct studies of energy relaxation times in two-dimensional AlGaAs/GaAs structures under quasi-equilibrium conditions in the nanosecond and picosecond time scale. We report our results of energy relaxation time measurements in the temperature range 1.6-50 K, in quantum Hall effect regime in magnetic fields up to 4 T.
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