Search Results - "Kozorezov, A. G."

Single-photon detection in the mid-infrared up to 10 μm wavelength using tungsten silicide superconducting nanowire detectors by Verma, V. B., Korzh, B., Walter, A. B., Lita, A. E., Briggs, R. M., Colangelo, M., Zhai, Y., Wollman, E. E., Beyer, A. D., Allmaras, J. P., Vora, H., Zhu, D., Schmidt, E., Kozorezov, A. G., Berggren, K. K., Mirin, R. P., Nam, S. W., Shaw, M. D.

“…We developed superconducting nanowire single-photon detectors based on tungsten silicide, which show saturated internal detection efficiency up to a wavelength…”
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Microscopic Model of a Transition Edge Sensor as a Weak Link by Kozorezov, A G, Golubov, A A, Martin, D D E, de Korte, P A J, Lindeman, M A, Hijmering, R A, Wigmore, J K

“…We have developed a microscopic model of the transition edge sensor (TES). In order to describe the TES as a laterally proximized S-S'-S weak link we used the…”
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A superconducting thermal switch with ultrahigh impedance for interfacing superconductors to semiconductors by McCaughan, A. N., Verma, V. B., Buckley, S. M., Allmaras, J. P., Kozorezov, A. G., Tait, A. N., Nam, S. W., Shainline, J. M.

“…A number of current approaches to quantum and neuromorphic computing use superconductors as the basis of their platform or as a measurement component, and will…”
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Energy relaxation in a superconductor with magnetic impurities by Kozorezov, A. G, Golubov, A. A, Wigmore, J. K, Martin, D, Verhoeve, P, Hijmering, R. A, Jerjen, I

“…In a superconductor with magnetic impurities, Kondo scattering results in the formation of localized states inside the superconducting gap. We show that…”
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Thin-Film Thermal Conductivity Measurements Using Superconducting Nanowires by Allmaras, J. P., Kozorezov, A. G., Beyer, A. D., Marsili, F., Briggs, R. M., Shaw, M. D.

“…We present a simple experimental scheme for estimating the cryogenic thermal transport properties of thin films using superconducting nanowires. In a parallel…”
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Observation of a new non-equilibrium state in superconductors caused by sequential tunnelling by Kozorezov, A. G, Wigmore, J. K, Peacock, A, Hartog, R. den, Martin, D, Brammertz, G, Verhoeve, P, Rando, N

“…A previously unrecognised non-equilibrium phenomenon in superconducting tunnel junctions is identified. The situation may arise in low-loss, low-gap,…”
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Evidence for an excited nonequilibrium quasiparticle distribution in superconducting tunnel junctions resulting from energy accumulation via sequential tunneling by KOZOREZOV, A. G, WIGMORE, J. K, PEACOCK, A, DEN HARTOG, R, MARTIN, D, BRAMMERTZ, G, VERHOEVE, P, RANDO, N

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Synchrotron study of charge transport in a CZT ring-drift detector by den Hartog, Roland, Owens, A., Kozorezov, A.G., Wigmore, J.K., Gostilo, V., Webb, M.A.

“…We report on experimental and theoretical results obtained with a CdZnTe (CZT) detector with a versatile read-out scheme: the ring detector. This detector has…”
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Resolution limitation in superconducting transition edge photon detectors due to downconversion phonon noise by Kozorezov, A. G., Wigmore, J. K., Martin, D., Verhoeve, P., Peacock, A.

“…The authors have identified an important source of line broadening in transition edge sensors used as optical photon detectors. It arises through the loss of…”
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Comparison of the Effects of Magnetic Field on Low Noise MoAu and TiAu TES Bolometers by Hijmering, R. A., Khosropanah, P., Ridder, M., Gao, J. R., Hoevers, H., Jackson, B., Goldie, D., Withington, S., Kozorezov, A. G.

“…Recently we have reported on the effects of magnetic field on our low noise (NEP = 4  × 10 - 19 W/ √ Hz) [ 1 ] TiAu TES bolometers that are being developed at…”
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Quasiparticle recombination in hotspots in superconducting current-carrying nanowires by Kozorezov, A G, Lambert, C, Marsili, F, Stevens, M J, Verma, V B, Stern, J A, Horansky, R, Dyer, S, Duff, S, Pappas, D P, Lita, A, Shaw, M D, Mirin, R P, Nam, Sae Woo

“…We describe a kinetic model of recombination of nonequilibrium quasiparticles generated by single photon absorption in superconducting current-carrying…”
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Phonon Noise in Thin Metal Films in an Advanced Energy Down-Conversion Stage by Kozorezov, A. G., Wigmore, J. K., Martin, D., Verhoeve, P., Peacock, A.

“…We have identified an important, new source of line broadening in single photon detectors that work on the principle of absorption in a thin metal film. Phonon…”
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Resolution limitation due to phonon losses in superconducting tunnel junctions by Martin, D. D. E., Verhoeve, P., Peacock, A., Kozorezov, A. G., Wigmore, J. K., Rogalla, H., Venn, R.

“…We report greatly enhanced energy resolving power of Ta∕Al superconducting tunnel junction (STJ) photon detectors. The improvement in resolution has led to the…”
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Direct Position Resolution Measurement with DROIDs at Optical Wavelengths by Hijmering, R. A., Verhoeve, P., Martin, D. D. E., Jerjen, I., Kozorezov, A. G., Venn, R.

“…The DROID (Distributed Read-Out Imaging Detector) is being developed to overcome the limitation in sensitive area with the use of single STJ’s (Superconducting…”
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Point defect scattering of THz phonons in sapphire determined by heat pulse back-scattering by Taele, B. M., Kozorezov, A. G., Rani, Hamid Bin, Wigmore, J. K.

“…Using a nanosecond heat pulse technique, we determined the point defect scattering rate for THz phonons due to oxygen isotopes in sapphire. We measured the…”
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Determination of the Photon Impact Position within a DROID by Jerjen, I., Hijmering, R. A., Verhoeve, P., Martin, D. D. E., Kozorezov, A. G., Venn, R.

“…Distributed read-out imaging detectors (DROIDs) combine a good energy resolution with a high position resolving power. Therefore they are promising candidates…”
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Carrier dynamics and resolution of co-planar grid radiation detectors by Kozorezov, A.G., Owens, A., Peacock, A., Wigmore, J.K.

“…Co-planar grid detectors utilizing single carrier sensing techniques, offer a practical solution for developing compound semiconductor gamma-ray detectors with…”
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Imaging spectroscopy with Ta/Al DROIDs: Performance for different absorber lengths by Hijmering, R.A., Verhoeve, P., Martin, D.D.E., Peacock, A., Kozorezov, A.G., Venn, R.

“…To overcome the limited field of view that can be achieved with single Superconducting Tunneling Junctions (STJ) arrays, Distributed Read Out Imaging Devices…”
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Resolution degradation of semiconductor detectors due to carrier trapping by Kozorezov, A.G., Wigmore, J.K., Owens, A., den Hartog, R., Peacock, A., A Al-Jawhari, Hala

“…Incomplete charge collection in semiconductor X-ray detectors due to carrier trapping is recognized as an important source of signal broadening. In this paper…”
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Imaging spectroscopy with Ta/Al DROIDs: Performance for different Al trapping layer thicknesses by Hijmering, R.A., Verhoeve, P., Martin, D.D.E., Peacock, A., Kozorezov, A.G.

“…To overcome the limited field of view, which can be achieved with single superconducting tunneling junction (STJ) arrays, distributed read-out imaging devices…”
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