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| Author | Bennett, Douglas A.; Schmidt, Daniel R.; Swetz, Daniel S.; Ullom, Joel N. | ||||
| Title | Phase-slip lines as a resistance mechanism in transition-edge sensors | Type | Journal Article | ||
| Year | 2014 | Publication | Appl. Phys. Lett. | Abbreviated Journal | Appl. Phys. Lett. |
| Volume | 104 | Issue | Pages | 042602 | |
| Keywords | microbolometers, TES, phase-slip lines, PSL | ||||
| Abstract | The fundamental mechanism of resistance in voltage-biased superconducting films is poorly understood despite its importance as the basis of transition-edge sensors (TESs). TESs are utilized in state-of-the-art microbolometers and microcalorimeters covering a wide range of energies and applications. We present a model for the resistance of a TES based on phase-slip lines (PSLs) and compare the model to data. One of the model's predictions, discrete changes in the number of PSLs, is a possible explanation for the observed switching between discrete current states in localized regions of bias. | ||||
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| Notes | Recommended by Klapwijk | Approved | no | ||
| Call Number | Serial | 929 | |||
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| Author | Swetz, D. S.; Bennett, D. A.; Irwin, K. D.; Schmidt, D. R.; Ullom, J. N. | ||||
| Title | Current distribution and transition width in superconducting transition-edge sensors | Type | Journal Article | ||
| Year | 2012 | Publication | Appl. Phys. Lett. | Abbreviated Journal | Appl. Phys. Lett. |
| Volume | 101 | Issue | Pages | 242603 | |
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| Abstract | Present models of the superconducting-to-normal transition in transition-edge sensors (TESs) do not describe the current distribution within a biased TES. This distribution is complicated by normal-metal features that are integral to TES design. We present a model with one free parameter that describes the evolution of the current distribution with bias. To probe the current distribution experimentally, we fabricated TES devices with different current return geometries. Devices where the current return geometry mirrors current flow within the device have sharper transitions, thus allowing for a direct test of the current-flow model.Measurements from these devices show that current meanders through a TES low in the resistivetransition but flows across the normal-metal features by 40% of the normal-state resistance. Comparison of transition sharpness between device designs reveals that self-induced magnetic fields play an important role in determining the width of the superconducting transition. | ||||
| Address | TES, current distribution | ||||
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| Notes | Recommended by Klapwijk | Approved | no | ||
| Call Number | Serial | 930 | |||
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| Author | Miao, W.; Zhang, W.; Zhong, J. Q.; Shi, S. C.; Delorme, Y.; Lefevre, R.; Feret, A; Vacelet, T | ||||
| Title | Non-uniform absorption of terahertz radiation on superconducting hot electron bolometer microbridges | Type | Journal Article | ||
| Year | 2014 | Publication | Appl. Phys. Lett. | Abbreviated Journal | <ef><bf><bc>Appl. Phys. Lett. |
| Volume | 104 | Issue | Pages | 052605(1-4) | |
| Keywords | NbN HEB mixers, local oscillator power, RF nonuniform absorption | ||||
| Abstract | We interpret the experimental observation of a frequency-dependence of superconducting hot electron bolometer (HEB) mixers by taking into account the non-uniform absorption of the terahertz radiation on the superconducting HEB microbridge. The radiation absorption is assumed to be proportional to the local surface resistance of the HEB microbridge, which is computed using the Mattis-Bardeen theory. With this assumption the dc and mixing characteristics of a superconducting niobium-nitride (NbN) HEB device have been modeled at frequencies below and above the equilibrium gap frequency of the NbN film. | ||||
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| Notes | Approved | no | |||
| Call Number | Serial | 935 | |||
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| Author | Kardakova, A.; Finkel, M.; Morozov, D.; Kovalyuk, V.; An, P.; Dunscombe, C.; Tarkhov, M.; Mauskopf, P.; Klapwijk, T.M.; Goltsman, G. | ||||
| Title | The electron-phonon relaxation time in thin superconducting titanium nitride films | Type | Journal Article | ||
| Year | 2013 | Publication | Appl. Phys. Lett. | Abbreviated Journal | Appl. Phys. Lett. |
| Volume | 103 | Issue | 25 | Pages | 252602 (1 to 4) |
| Keywords | disordered TiN films, electron-phonon relaxation time | ||||
| Abstract | We report on the direct measurement of the electron-phonon relaxation time, τeph, in disordered TiN films. Measured values of τeph are from 5.5 ns to 88 ns in the 4.2 to 1.7 K temperature range and consistent with a T−3 temperature dependence. The electronic density of states at the Fermi level N0 is estimated from measured material parameters. The presented results confirm that thin TiN films are promising candidate-materials for ultrasensitive superconducting detectors. The work was supported by the Ministry of Education and Science of the Russian Federation, Contract No. 14.B25.31.0007 and by the RFBR Grant No. 13-02-91159. |
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| Notes | Approved | no | |||
| Call Number | RPLAB @ kovalyuk @ | Serial | 941 | ||
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| Author | Gousev, Yu. P.; Semenov, A. D.; Pechen, E. V.; Varlashkin, A. V.; Nebosis, R. S.; Renk K. F | ||||
| Title | Coupling of terahertz radiation to a high-Т(с) superconducting hot electron bolometer mixer | Type | Journal Article | ||
| Year | 1996 | Publication | Abbreviated Journal | Appl. Phys. Lett., | |
| Volume | 69 | Issue | Pages | 691-693 | |
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| Abstract | We report on efficient coupling of THz radiation to a high-T(c) superconducting hot electron bolometer that is suitable for heterodyne detection. Our quasioptical system consisted of a planar self-complementary spiral antenna on a dielectric substrate clamped to an extended hyperhemispherical lens. The antenna was integrated into a co-planar line for broadband intermediate frequency matching. Measurements in the homodyne regime at a frequency of 2.5 THz showed a radiation pattern with a beam width of 1° and a coupling efficiency of 0.1. We measured, at an intermediate frequency of 1.5 GHz, an output noise temperature of'160 K and estimated for the device, operated in the heterodyne regime, a system noise temperature of 30 000 K. We also discuss possibilities of significant improvement of the sensitivity. | ||||
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| Notes | Approved | no | |||
| Call Number | RPLAB @ atomics90 @ | Serial | 958 | ||
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| Author | Floet D. W.; Gao J. R.; Klapwijk T. M.; de Korte P. A. J. | ||||
| Title | Bias Dependence of the Thermal Time Constant in Nb Superconducting Diffusion-Cooled HEB Mixers | Type | Journal Article | ||
| Year | 2000 | Publication | Appl. Phys. Lett. | Abbreviated Journal | Appl. Phys. Lett. |
| Volume | 77 | Issue | Pages | 1719 | |
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| Abstract | We present an experimental study of the intermediate frequency bandwidth of a Nb diffusion-cooled hot-electron bolometer mixer for different bias voltages. The measurements show that the bandwidth increases with increasing voltage. Analysis of the data reveals that this effect is mainly caused by a decrease of the intrinsic thermal time of the mixer and that the effect of electrothermal feedback through the intermediate frequency circuit is small. The results are understood using a qualitative model, which takes into account the different effective diffusion constants in the normal and superconducting domains. | ||||
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| Notes | Approved | no | |||
| Call Number | RPLAB @ atomics90 @ | Serial | 971 | ||
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| Author | Tarkhov, M.; Claudon, J.; Poizat, J. Ph.; Korneev, A.; Divochiy, A.; Minaeva, O.; Seleznev, V.; Kaurova, N.; Voronov, B.; Semenov, A. V.; Gol'tsman, G. | ||||
| Title | Ultrafast reset time of superconducting single photon detectors | Type | Journal Article | ||
| Year | 2008 | Publication | Appl. Phys. Lett. | Abbreviated Journal | Appl. Phys. Lett. |
| Volume | 92 | Issue | 24 | Pages | 241112 (1 to 3) |
| Keywords | SSPD, SNSPD | ||||
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0003-6951 | ISBN | Medium | ||
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| Notes | Approved | no | |||
| Call Number | Serial | 429 | |||
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| Author | Hadfield, Robert. H.; Habif, Jonathan L.; Schlafer, John; Schwall, Robert. E.; Nam, Sae Woo | ||||
| Title | Quantum key distribution at 1550 nm with twin superconducting single-photon detectors | Type | Journal Article | ||
| Year | 2006 | Publication | Applied Physics Letters | Abbreviated Journal | Appl. Phys. Lett. |
| Volume | 89 | Issue | 24 | Pages | 241129 |
| Keywords | SSPD, quantum cryptography | ||||
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0003-6951 | ISBN | Medium | ||
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| Notes | Approved | no | |||
| Call Number | Serial | 533 | |||
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| Author | Delacour, C.; Claudon, J.; Poizat, J.-Ph.; Pannetier, B.; Bouchiat, V.; de Lamaestre, R. Espiau; Villegier, J.-C.; Tarkhov, M.; Korneev, A.; Voronov, B.; Gol'tsman, G. | ||||
| Title | Superconducting single photon detectors made by local oxidation with an atomic force microscope | Type | Journal Article | ||
| Year | 2007 | Publication | Appl. Phys. Lett. | Abbreviated Journal | Appl. Phys. Lett. |
| Volume | 90 | Issue | 19 | Pages | 191116 (1 t0 3) |
| Keywords | SSPD | ||||
| Abstract | The authors present a fabrication technique of superconducting single photon detectors made by local oxidation of niobium nitride ultrathin films. Narrow superconducting meander lines are obtained by direct writing of insulating niobium oxynitride lines through the films using voltage-biased tip of an atomic force microscope. Due to the 30nm resolution of the lithographic technique, the filling factor of the meander line can be made substantially higher than detector of similar geometry made by electron beam lithography, thus leading to increased quantum efficiency. Single photon detection regime of these devices is demonstrated at 4.2K. The authors thank J.-P. Maneval for stimulating discussions. This work has been partly supported by ACI Nanoscience from French Ministry of Research, D.G.A., by Grant No. 02.445.11.7434 of Russian Ministry of Education and Science, and by the European Commission under project “SINPHONIA,” Contract No. NMP4-CT-2005-16433. |
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0003-6951 | ISBN | Medium | ||
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| Notes | Approved | no | |||
| Call Number | Serial | 423 | |||
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| Author | Lindgren, M.; Zorin, M. A.; Trifonov, V.; Danerud, M.; Winkler, D.; Karasik, B. S.; Gol'tsman, G. N.; Gershenzon, E. M. | ||||
| Title | Optical mixing in a patterned YBa2Cu3O7-δ thin film | Type | Journal Article | ||
| Year | 1994 | Publication | Appl. Phys. Lett. | Abbreviated Journal | Appl. Phys. Lett. |
| Volume | 65 | Issue | 26 | Pages | 3398-3400 |
| Keywords | YBCO HTS HEB mixer, bandwidth | ||||
| Abstract | Mixing of 1.56 µm infrared radiation from two lasers in a high quality YBa2Cu3O7-δ thin film, patterned to parallel strips, was demonstrated. A mixer bandwidth of 18 GHz, limited by the measurement system, was obtained. A model based on nonequilibrium electron heating gives a good fit to the data and predicts an intrinsic mixer bandwidth in excess of 100 GHz, operating in the whole infrared spectrum. Reduction of bolometric effects and ways to decrease the conversion loss of the mixer is discussed. The minimum conversion loss is expected to be ~10 dB. | ||||
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0003-6951 | ISBN | Medium | ||
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| Notes | Approved | no | |||
| Call Number | Serial | 251 | |||
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| Author | Karasik, B. S.; Elantiev, A. I. | ||||
| Title | Noise temperature limit of a superconducting hot-electron bolometer mixer | Type | Journal Article | ||
| Year | 1996 | Publication | Applied Physics Letters | Abbreviated Journal | Appl. Phys. Lett. |
| Volume | 68 | Issue | 6 | Pages | 853-855 |
| Keywords | HEB mixer noise temperature, Johnson noise, thermal fluctuation noise, noise bandwidth | ||||
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0003-6951 | ISBN | Medium | ||
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| Notes | Approved | no | |||
| Call Number | Serial | 260 | |||
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| Author | Karasik, B. S.; Il'in, K. S.; Pechen, E. V.; Krasnosvobodtsev, S. I. | ||||
| Title | Diffusion cooling mechanism in a hot-electron NbC microbolometer mixer | Type | Journal Article | ||
| Year | 1996 | Publication | Applied Physics Letters | Abbreviated Journal | Appl. Phys. Lett. |
| Volume | 68 | Issue | 16 | Pages | 2285-2287 |
| Keywords | HEB mixer, diffusion cooling channel, diffusion channel | ||||
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0003-6951 | ISBN | Medium | ||
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| Notes | Approved | no | |||
| Call Number | Serial | 262 | |||
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| Author | Il’in, K. S.; Milostnaya, I. I.; Verevkin, A. A.; Gol’tsman, G. N.; Gershenzon, E. M.; Sobolewski, R. | ||||
| Title | Ultimate quantum efficiency of a superconducting hot-electron photodetector | Type | Journal Article | ||
| Year | 1998 | Publication | Appl. Phys. Lett. | Abbreviated Journal | Appl. Phys. Lett. |
| Volume | 73 | Issue | 26 | Pages | 3938-3940 |
| Keywords | NbN SSPD, SNSPD | ||||
| Abstract | The quantum efficiency and current and voltage responsivities of fast hot-electron photodetectors, fabricated from superconducting NbN thin films and biased in the resistive state, have been shown to reach values of 340, 220 A/W, and 4×104 V/W, respectively, for infrared radiation with a wavelength of 0.79 μm. The characteristics of the photodetectors are presented within the general model, based on relaxation processes in the nonequilibrium electron heating of a superconducting thin film. The observed, very high efficiency and sensitivity of the superconductor absorbing the photon are explained by the high multiplication rate of quasiparticles during the avalanche breaking of Cooper pairs. |
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0003-6951 | ISBN | Medium | ||
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| Notes | Approved | no | |||
| Call Number | Serial | 1579 | |||
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| Author | Ganzevles, W. F. M.; Gao, J. R.; de Korte, P. A. J.; Klapwijk, T. M. | ||||
| Title | Direct response of microstrip line coupled Nb THz hot-electron bolometer mixers | Type | Journal Article | ||
| Year | 2001 | Publication | Applied Physics Letters | Abbreviated Journal | Appl. Phys. Lett. |
| Volume | 79 | Issue | 15 | Pages | 2483-2485 |
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0003-6951 | ISBN | Medium | ||
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| Notes | Approved | no | |||
| Call Number | Serial | 311 | |||
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| Author | Dorenbos, S. N.; Reiger, E. M.; Perinetti, U.; Zwiller, V.; Zijlstra, T.; Klapwijk, T. M. | ||||
| Title | Low noise superconducting single photon detectors on silicon | Type | Journal Article | ||
| Year | 2008 | Publication | Applied Physics Letters | Abbreviated Journal | Appl. Phys. Lett. |
| Volume | 93 | Issue | 13 | Pages | 131101 |
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0003-6951 | ISBN | Medium | ||
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| Notes | Approved | no | |||
| Call Number | RPLAB @ s @ | Serial | 436 | ||
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