Josephson broadband spectroscopy to 1 THz

Edstam, J.; Olsson, H.K.
May 1994
Applied Physics Letters;5/16/1994, Vol. 64 Issue 20, p2733
Academic Journal
Demonstrates the operation of a Josephson Broadband Spectrometer with a frequency range and bandwidth of 1 THz. Use of the inherent frequency tuning of the Josephson oscillations; Probe on the complex impedance environment of the Josephson junction; Limitations in the frequency range of oscillators and matching networks.


Related Articles

  • A Josephson junction defect spectrometer for measuring two-level systems. Stoutimore, M. J. A.; Khalil, M. S.; Lobb, C. J.; Osborn, K. D. // Applied Physics Letters;8/6/2012, Vol. 101 Issue 6, p062602 

    We have fabricated and measured Josephson junction (JJ) defect spectrometers, which are frequency-tunable, nearly harmonic oscillators that probe strongly coupled two-level systems (TLSs) in the barrier of a JJ. The JJDSs accommodate a wide range of junction inductances, LJ, while maintaining a...

  • Electrical behavior of YBa2Cu3O7-x grain boundary junctions under low magnetic field. Nicoletti, S.; Villegier, J.-C. // Journal of Applied Physics;7/1/1997, Vol. 82 Issue 1, p303 

    Reports on the characterization of high temperature superconductor grain boundary junctions under a magnetic field in the mT range. Consideration of samples fabricated on symmetrical bi-crystal substrates; Electrical characterization; Josephson current of a given junction.

  • Supercurrent distributions and flux penetration in YBa2Cu3O7-YBa2Co0.15Cu2.85O7-YBa2Cu3O7 edge... Gausepohl, S.C.; Lee, Mark; Berkowitz, S. J.; Mallison, W. H. // Journal of Applied Physics;9/1/1997, Vol. 82 Issue 5, p2427 

    Focuses on the measurement and analysis of critical current modulation and microwave response in magnetic field for a set of YBa2Cu3O7-YBa2Co0.15Cu2.85O7-YBa2Cu3O7 ramp-edge Josephson junctions. Contribution from edge supercurrents; Addition of a superconducting ground plane; Modeling of the...

  • Fluxon dynamics in discrete Josephson transmission lines with stacked junctions. Caputo, P.; Darula, M.; Ustinov, A. V.; Kohlstedt, H. // Journal of Applied Physics;1/1/1997, Vol. 81 Issue 1, p309 

    Studies the properties of discrete Josephson multi-junction transmission lines (DMJTLs) based on double-barrier stacked junctions. Description of the fabrication technology of double-barrier DMJTLs; Distinct features of DMJTL; Possibility of multi-fluxon transfer through DMJTL.

  • The influence of the critical current spread on the frequency locking of Josephson junctions in... Laub, A.; Keck, M.; Doderer, T.; Huebener, R.P.; Traeuble, T.; Dolata, R.; Weimann, T.; Niemeyer, J. // Journal of Applied Physics;5/15/1998, Vol. 83 Issue 10, p5302 

    Provides information on an experiment examining two-dimensional arrays of overdamped Josephson junction under microwave irradiation. Importance on the absence of a voltage signal when an array with inhomogeneities is biased near its critical current; Influence of the current spread; Results of...

  • Complex dynamics of resistively and inductively shunted Josephson junctions. Cawthorne, A.B.; Whan, C.B.; Lobb, C.J. // Journal of Applied Physics;7/15/1998, Vol. 84 Issue 2, p1126 

    Studies the complex dynamics of resistively and inductively shunted Josephson junctions. Examination of the simulated voltage waveforms; Description of Josephson tunnel junctions.

  • Fundamental and harmonic submillimeter-wave emission from parallel Josephson junction arrays. Boussaha, Faouzi; Salez, Morvan; Féret, Alexandre; Lecomte, Benoit; Chaumont, Christine; Chaubet, Michel; Dauplay, Frédéric; Delorme, Yan; Krieg, Jean-Michel // Journal of Applied Physics;Apr2009, Vol. 105 Issue 7, p073902 

    We report heterodyne measurements of Josephson microwave radiation emitted by a parallel array of small superconductor-insulator-superconductor (SIS) junctions at submillimeter-wave frequencies. The array consists of five Nb/Al–AlOx/Nb junctions nonevenly distributed in a niobium...

  • The effect of bias feed profile on the linewidth of noisy Josephson flux flow oscillator. Matrozova, Ekaterina A.; Pankratov, Andrey L.; Revin, Leonid S. // Journal of Applied Physics;Sep2012, Vol. 112 Issue 5, p053905 

    For creation of a noisy non-stationary spectrometer operating in the sub-THz frequency range, the emitting power and spectral characteristics of a flux-flow oscillator based on a long Josephson junction are considered. The effect of bias current profiles on the spectral linewidth of a long...

  • Automatic recording of direct current singularity amplitudes in Josephson junctions. Costabile, G.; Gambardella, U.; Pagano, S. // Review of Scientific Instruments;Aug1985, Vol. 56 Issue 8, p1623 

    We have designed and tested an electronic circuit to record the amplitude of any current singularity in the current-voltage characteristic of a Josephson tunnel junction. The detection of the peak current occurs only when the junction voltage is within a range that can be centered and narrowed...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics