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Goltsman G, Korneev A, Izbenko V, Smirnov K, Kouminov P, Voronov B, et al. Nano-structured superconducting single-photon detectors. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2004;520(1-3):527–9.
Abstract: NbN detectors, formed into meander-type, 10×10-μm2 area structures, based on ultrathin (down to 3.5-nm thickness) and nanometer-width (down to below 100 nm) NbN films are capable of efficiently detecting and counting single photons from the ultraviolet to near-infrared optical wavelength range. Our best devices exhibit QE >15% in the visible range and ∼10% in the 1.3–1.5-μm infrared telecommunication window. The noise equivalent power (NEP) ranges from ∼10−17 W/Hz1/2 at 1.5 μm radiation to ∼10−19 W/Hz1/2 at 0.56 μm, and the dark counts are over two orders of magnitude lower than in any semiconducting competitors. The intrinsic response time is estimated to be <30 ps. Such ultrafast detector response enables a very high, GHz-rate real-time counting of single photons. Already established applications of NbN photon counters are non-invasive testing and debugging of VLSI Si CMOS circuits and quantum communications.
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Rubtsova I, Korneev A, Matvienko V, Chulkova G, Milostnaya I, Goltsman G, et al. Spectral sensitivity, quantum efficiency, and noise equivalent power of NbN superconducting single-photon detectors in the IR range. In: Proc. 29th IRMMW / 12th THz.; 2004. p. 461–2.
Abstract: We have developed nanostructured NbN superconducting single-photon detectors capable of GHz-rate photon counting in the 0.4 to 5 /spl mu/m wavelength range. Quantum efficiency of 30%, dark count rate 3/spl times/10/sup -4/ s/sup -1/, and NEP=10/sup -20/ W/Hz/sup -1/2/ have been measured at the 1.3-/spl mu/m wavelength for the device operating at 2.0 K.
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Meledin D, Tong C-YE, Blundell R, Goltsman G. Measurement of intermediate frequency bandwidth of hot electron bolometer mixers at terahertz frequency range. IEEE Microw Wireless Compon Lett. 2003;13(11):493–5.
Abstract: We have developed a new experimental setup for measuring the IF bandwidth of superconducting hot electron bolometer mixers. In our measurement system we use a chopped hot filament as a broadband signal source, and can perform a high-speed IF scan with no loss of accuracy when compared to coherent methods. Using this technique we have measured the 3 dB IF bandwidth of hot electron bolometer mixers, designed for THz frequency operation, and made from 3-4 nm thick NbN film deposited on an MgO buffer layer over crystalline quartz.
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Antipov SV, Svechnikov SI, Smirnov KV, Vakhtomin YB, Finkel MI, Goltsman GN, et al. Noise temperature of quasioptical NbN hot electron bolometer mixers at 900 GHz. Physics of Vibrations. 2001;9(4):242–5.
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Svechnikov SI, Antipov SV, Vakhtomin YB, Goltsman GN, Gershenzon EM, Cherednichenko SI, et al. Conversion and noise bandwidths of terahertz NbN hot-electron bolometer mixers. Physics of Vibrations. 2001;9(3):205–10.
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Verevkin AA, Ptitsina NG, Smirnov KV, Goltsman GN, Gershenson EM, Yngvesson KS. Direct measurements of electron energy relaxation times at an AlGaAs/GaAs heterointerface in the optical phonon scattering range. In: Proc. 4-th Int. Semicond. Device Research Symp.; 1997. p. 55–8.
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Gershenzon EM, Gogidze IG, Goltsman GN, Semenov AD, Sergeev AV. Picosecond response on optical-range emission in thin YBaCuO films. Pisma v Zhurnal Tekhnicheskoi Fiziki. 1991;17(22):6–10.
Abstract: Целью настоящей работы является целенаправленный поиск пико-секундного отклика на оптическое излучение выяснение оптимальных условий его наблюдения, а также сравнение характеристик неравновесных эффектов в оптическом и субмиллиметровом диапазонах.
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Voevodin EI, Gershenzon EM, Goltsman GN, Ptitsina NG. Energy-spectrum of shallow acceptors in Ge deformed strongly by a uniaxial pressure. Sov Phys and Technics of Semiconductors. 1989;23(8):843–6.
Abstract: Проведены исследования спектров фототермической ионизации мелких акцепторов (В, Аl) в Ge, предельно сжатом вдоль кристаллографической оси [100]. Из данных измерений с учетом теории построен энергетический спектр примесей. Показано, что энергии большого числа уровней четных и нечетных состояний хорошо соответствуют расчету, выполненному для примесей в анизотропном полупроводнике с параметром анизотропии γ=m∗⊥/m∗∥>1.
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Aksaev EE, Gershenzon EM, Gershenson ME, Goltsman GN, Semenov AD, Sergeev AV. Prospects for using high-temperature superconductors to create electron bolometers. Pisma v Zhurnal Tekhnicheskoi Fiziki. 1989;15(14):88–93.
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Gershenzon EM, Gershenson ME, Goltsman GN, Karasik BS, Lyulkin AM, Semenov AD. Fast-response superconducting electron bolometer. Pisma v Zhurnal Tekhnicheskoi Fiziki. 1989;15(3):88–92.
Abstract: The general design, operation, and performance characteristics of fast-response electronic bolometers using a thin superconducting Nb film on a leucosapphire substrate are briefly reviewed. The volt-watt sensitivity of the bolometrs is 2,000-200,000 V/W, the operating temperature is 1.6 K, and the time constant is 4-4.5 ns.
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