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Mather, J. |
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Electrical self-heating calibration of nonideal bolometers |
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1984 |
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Appl. Optics. |
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23 |
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18 |
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3181-3183 |
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234 |
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Steier, W. H.; Oh, M. C.; Zhang, C.; Zhang, H.; Szep, A.; Fetterman, H. R.; Chang, Y.; Erlig, H.; Tsap, B.; Dalton, L. R. |
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Electro-optic polymers and applications in next generation phase array antennas |
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Miscellaneous |
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2008 |
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IR modulator |
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Presentation. The year of the publication is from the file (pdf) properties. |
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539 |
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Coumou, P. C. J. J.; Driessen, E. F. C.; Bueno, J.; Chapelier, C.; Klapwijk, T. M. |
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Title |
Electrodynamic response and local tunneling spectroscopy of strongly disordered superconducting TiN films |
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Journal Article |
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2013 |
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Phys. Rev. B |
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88 |
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18 |
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180505 (1 to 5) |
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strongly disordered superconducting TiN films, microwave resonators |
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We have studied the electrodynamic response of strongly disordered superconducting TiN films using microwave resonators, where the disordered superconductor is the resonating element in a high-quality superconducting environment of NbTiN. We describe the response assuming an effective pair-breaking mechanism modifying the density of states and compare this to local tunneling spectra obtained using scanning tunneling spectroscopy. For the least disordered film (kFl=8.7, Rs=13Ω), we find good agreement, whereas for the most disordered film (kFl=0.82, Rs=4.3kΩ), there is a strong discrepancy, which signals the breakdown of a model based on uniform properties. |
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1069 |
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Gershenzon, E. M.; Gol’tsman, G. N.; Gousev, Y. P.; Elant’ev, A. I.; Semenov, A. D. |
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Electromagnetic radiation mixer based on electron heating in resistive state of superconductive Nb and YBaCuO films |
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1991 |
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IEEE Trans. Magn. |
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IEEE Trans. Magn. |
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27 |
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2 |
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1317-1320 |
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YBCO, HTS, Nb HEB mixers |
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A theory of an electron-heating mixer which makes it possible to calculate all the characteristics of the device is developed. It is shown that positive conversion gain is possible for such a mixer in the millimeter to near-infrared wavelength range. The dynamic range and the optimum heterodyne power can be selected from a very wide interval by varying the mixing element volume. Measurements made for Nb within the frequency range of 120-750 GHz confirm the theory. The conversion loss obtained at T=1.6 K and normalized to the element reaches 0.3 dB in the intermediate frequency band of 40 MHz; the possible noise temperature is 50 K. The estimation of noise temperature and output band for YBaCuO at T=77 yields 200 K and more than 10 GHz, respectively. |
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1941-0069 |
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1681 |
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Shytov, A. V.; Levitov, L. S.; Beenakker, C. W. J. |
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Electromechanical noise in a diffusive conductor |
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2002 |
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Phys. Rev. Lett. |
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Phys. Rev. Lett. |
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88 |
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22 |
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Electrons moving in a conductor can transfer momentum to the lattice via collisions with impurities and boundaries, giving rise to a fluctuating mechanical stress tensor. The root-mean-squared momentum transfer per scattering event in a disordered metal (of dimension L greater than the mean free path l and screening length xi) is found to be reduced below the Fermi momentum by a factor of order l/L for shear fluctuations and (xi/L)^2 for pressure fluctuations. The excitation of an elastic bending mode by the shear fluctuations is estimated to fall within current experimental sensitivity for a nanomechanical oscillator. |
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0031-9007 |
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RPLAB @ s @ |
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433 |
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