Tunable THz source using superconducting tunnel junctions

F. Boussaha; A. Féret; C. Chaumont; L. Loukitch; T. Vacelet

doi:10.1117/12.2026955

24 September 2013 Tunable THz source using superconducting tunnel junctions

F. Boussaha, A. Féret, C. Chaumont, L. Loukitch, T. Vacelet

Proceedings Volume 8846, Terahertz Emitters, Receivers, and Applications IV; 88460L (2013) https://doi.org/10.1117/12.2026955
Event: SPIE Optical Engineering + Applications, 2013, San Diego, California, United States

Abstract

We report on tunable submillimeter-wave radiation sources based on micrometer-sized superconducting tunnel junction arrays optimized within a bandwidth of 350-520 GHz. The arrays consist of 10, 20 and 40 Superconductor-Insulator- Superconductor (SIS) parallel-connected Nb/AlO_x/Nb junctions embedded in superconducting microstrip lines. A SIS twin-junction is integrated along with each array to detect output signals. The pumped detector’s I-V characteristic exhibits clearly photon-assisted quasiparticule steps when the arrays are biased upon corresponding Josephson resonances ranging from 370 to 520 GHz.

Citation Download Citation

F. Boussaha, A. Féret, C. Chaumont, L. Loukitch, and T. Vacelet "Tunable THz source using superconducting tunnel junctions", Proc. SPIE 8846, Terahertz Emitters, Receivers, and Applications IV, 88460L (24 September 2013); https://doi.org/10.1117/12.2026955

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