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Author Parker, W. H. doi  openurl
  Title Modified heating theory of nonequilibrium superconductors Type Journal Article
  Year 1975 Publication Phys. Rev. B Abbreviated Journal  
  Volume 12 Issue 9 Pages 3667-3672  
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  Publisher American Physical Society Place of Publication Editor  
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  Notes Approved no  
  Call Number mht_Parker_1975 Serial (up) 221  
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Author Perrin, N.; Vanneste, C. doi  openurl
  Title Response of superconducting films to a periodic optical irradiation Type Journal Article
  Year 1983 Publication Phys. Rev. B Abbreviated Journal  
  Volume 28 Issue 9 Pages 5150-5159  
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  Notes Approved no  
  Call Number sc_resp_Perrin_1983 Serial (up) 233  
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Author Sergeev, A.; Mitin, V. url  doi
openurl 
  Title Electron-phonon interaction in disordered conductors: Static and vibrating scattering potentials Type Journal Article
  Year 2000 Publication Phys. Rev. B. Abbreviated Journal Phys. Rev. B.  
  Volume 61 Issue 9 Pages 6041-6047  
  Keywords disordered conductors, scattering potential, electron-phonon interaction  
  Abstract Employing the Keldysh diagram technique, we calculate the electron-phonon energy relaxation rate in a conductor with the vibrating and static δ-correlated random electron-scattering potentials. If the scattering potential is completely dragged by phonons, this model yields the Schmid’s result for the inelastic electron-scattering rate τ−1e−ph. At low temperatures the effective interaction decreases due to disorder, and τ−1e−ph∝T4l (l is the electron mean-free path). In the presense of the static potential, quantum interference of numerous scattering processes drastically changes the effective electron-phonon interaction. In particular, at low temperatures the interaction increases, and τ−1e−ph∝T2/l. Along with an enhancement of the interaction, which is observed in disordered metallic films and semiconducting structures at low temperatures, the suggested model allows us to explain the strong sensitivity of the electron relaxation rate to the microscopic quality of a particular film.  
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  ISSN 0163-1829 ISBN Medium  
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  Notes Approved no  
  Call Number Serial (up) 307  
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Author Smolyaninov, I. I.; Zayats, A. V.; Stanishevsky, A.; Davis, C. C. url  doi
openurl 
  Title Optical control of photon tunneling through an array of nanometer-scale cylindrical channels Type Journal Article
  Year 2002 Publication Phys. Rev. B Abbreviated Journal Phys. Rev. B  
  Volume 66 Issue 20 Pages 205414_1-205414_5  
  Keywords optical mixing  
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  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1098-0121 ISBN Medium  
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  Notes Approved no  
  Call Number Serial (up) 499  
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Author Su, M. Y.; Carter, S. G.; Sherwin, M. S. url  doi
openurl 
  Title Strong-field terahertz optical mixing in excitons Type Journal Article
  Year 2003 Publication Phys. Rev. B Abbreviated Journal Phys. Rev. B  
  Volume 67 Issue 12 Pages  
  Keywords optical mixing  
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  Notes Approved no  
  Call Number Serial (up) 500  
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Author Ciulin, V.; Carter, S. G.; Sherwin, M. S. url  doi
openurl 
  Title Terahertz optical mixing in biased GaAs single quantum wells Type Journal Article
  Year 2004 Publication Phys. Rev. B Abbreviated Journal Phys. Rev. B  
  Volume 70 Issue 11 Pages 115312-(1-6)  
  Keywords optical mixing  
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  ISSN 1098-0121 ISBN Medium  
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  Notes Approved no  
  Call Number Serial (up) 501  
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Author Kerman, Andrew J.; Yang, Joel K. W.; Molnar, Richard J.; Dauler, Eric A.; Berggren, Karl K. openurl 
  Title Electrothermal feedback in superconducting nanowire single-photon detectors Type Journal Article
  Year 2009 Publication Phys. Rev. B Abbreviated Journal Phys. Rev. B  
  Volume 79 Issue 10 Pages 4  
  Keywords SNSPD  
  Abstract We investigate the role of electrothermal feedback in the operation of superconducting nanowire single-photon detectors (SNSPDs). It is found that the desired mode of operation for SNSPDs is only achieved if this feedback is unstable, which happens naturally through the slow electrical response associated with their relatively large kinetic inductance. If this response is sped up in an effort to increase the device count rate, the electrothermal feedback becomes stable and results in an effect known as latching, where the device is locked in a resistive state and can no longer detect photons. We present a set of experiments which elucidate this effect and a simple model which quantitatively explains the results.  
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  Call Number RPLAB @ gujma @ Serial (up) 680  
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Author Bulaevskii, L. N.; Graf, M. J.; Batista, C. D.; Kogan, V. G. openurl 
  Title Vortex-induced dissipation in narrow current-biased thin-film superconducting strips Type Journal Article
  Year 2011 Publication Phys. Rev. B Abbreviated Journal Phys. Rev. B  
  Volume 83 Issue 14 Pages 9  
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  Abstract A vortex crossing a thin-film superconducting strip from one edge to the other, perpendicular to the bias current, is the dominant mechanism of dissipation for films of thickness d on the order of the coherence length ξ and of width w much narrower than the Pearl length Λâ‰<ab>wâ‰<ab>ξ. At high bias currents I*<I<Ic the heat released by the crossing of a single vortex suffices to create a belt-like normal-state region across the strip, resulting in a detectable voltage pulse. Here Ic is the critical current at which the energy barrier vanishes for a single vortex crossing. The belt forms along the vortex path and causes a transition of the entire strip into the normal state. We estimate I* to be roughly Ic/3. Furthermore, we argue that such “hot” vortex crossings are the origin of dark counts in photon detectors, which operate in the regime of metastable superconductivity at currents between I* and Ic. We estimate the rate of vortex crossings and compare it with recent experimental data for dark counts. For currents below I*, that is, in the stable superconducting but resistive regime, we estimate the amplitude and duration of voltage pulses induced by a single vortex crossing.  
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  Notes SSPD Approved no  
  Call Number RPLAB @ gujma @ Serial (up) 688  
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Author Bulaevskii, L. N.; Graf, Matthias J.; Kogan, V. G. openurl 
  Title Vortex-assisted photon counts and their magnetic field dependence in single-photon superconducting detectors Type Journal Article
  Year 2012 Publication Phys. Rev. B Abbreviated Journal Phys. Rev. B  
  Volume 85 Issue 1 Pages 9  
  Keywords SSPD; SNSPD; single-vortex crossing; normal-state belt  
  Abstract We argue that photon counts in a superconducting nanowire single-photon detector (SNSPD) are caused by the transition from a current-biased metastable superconducting state to the normal state. Such a transition is triggered by vortices crossing the thin and narrow superconducting strip from one edge to another due to the Lorentz force. Detector counts in SNSPDs may be caused by three processes: (a) a single incident photon with sufficient energy to break enough Cooper pairs to create a normal-state belt across the entire width of the strip (direct photon count), (b) thermally induced single-vortex crossing in the absence of photons (dark count), which at high-bias currents releases the energy sufficient to trigger the transition to the normal state in a belt across the whole width of the strip, and (c) a single incident photon of insufficient energy to create a normal-state belt but initiating a subsequent single-vortex crossing, which provides the rest of the energy needed to create the normal-state belt (vortex-assisted single-photon count). We derive the current dependence of the rate of vortex-assisted photon counts. The resulting photon count rate has a plateau at high currents close to the critical current and drops as a power law with high exponent at lower currents. While the magnetic field perpendicular to the film plane does not affect the formation of hot spots by photons, it causes the rate of vortex crossings (with or without photons) to increase. We show that by applying a magnetic field one may characterize the energy barrier for vortex crossings and identify the origin of dark counts and vortex-assisted photon counts.  
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  Call Number RPLAB @ gujma @ Serial (up) 733  
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Author Santhanam, P.; Wind, S.; Prober, D. E. openurl 
  Title Localization, superconducting fluctuations, and superconductivity in thin films and narrow wires of aluminum Type Journal Article
  Year 1987 Publication Phys. Rev. B Abbreviated Journal Phys. Rev. B  
  Volume 35 Issue 7 Pages 3188-3206  
  Keywords Al films; electron-phonon scattering; electron-electron scattering; Disordered structures; amorphous and glassy solids, Relaxation times and mean free paths, Galvanomagnetic and other magnetotransport effects  
  Abstract We report a comprehensive set of experiments on wide and narrow thin-film strips of aluminum which test the predictions of recent localization theory. The experiments on wide films in the two-dimensional regime confirm the theoretical predictions and also yield insight into inelastic mechanisms and spin-orbit scattering rates. Our extension of the existing theory for one-dimensional systems to include spin-orbit scattering and Maki-Thompson superconducting fluctuations is verified by the experiments. We find clear evidence for one-dimensional localization, with inferred inelastic rates identical to those in two-dimensional films. The prediction of the localization theory for a dimensional crossover from two-dimensional to one-dimensional behavior is also confirmed. We have reanalyzed the results of some previous experiments on thin films and narrow wires in light of these results.  
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  Notes Approved no  
  Call Number RPLAB @ gujma @ Serial (up) 757  
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