We have integrated on oxidized silicon wafers superconductive films and Josephson junctions along with sol-gel optical channel waveguides. The fabrication process is carried out in two steps that result to be solid and noninvasive. It is demonstrated that 660 nm light, coupled from an optical fiber into the channel sol-gel waveguide, can be directed toward superconducting tunnel junctions whose current-voltage characteristics are affected by the presence of the radiation. The response of the junction biased at various currents as a function of the optical pumping is presented and discussed according to a nonequilibrium superconductivity model. (C) 2008 American Institute of Physics.

Stella, F., Casalboni, M., Cirillo, M., Merlo, V., Palazzesi, C., Pepe, G.P., et al. (2008). Integrating superconductive and optical circuits. APPLIED PHYSICS LETTERS, 92(20) [10.1063/1.2931700].

Integrating superconductive and optical circuits

STELLA, FEDERICA;CASALBONI, MAURO;CIRILLO, MATTEO;MERLO, VITTORIO;PROSPOSITO, PAOLO;SALVATO, MATTEO
2008

Abstract

We have integrated on oxidized silicon wafers superconductive films and Josephson junctions along with sol-gel optical channel waveguides. The fabrication process is carried out in two steps that result to be solid and noninvasive. It is demonstrated that 660 nm light, coupled from an optical fiber into the channel sol-gel waveguide, can be directed toward superconducting tunnel junctions whose current-voltage characteristics are affected by the presence of the radiation. The response of the junction biased at various currents as a function of the optical pumping is presented and discussed according to a nonequilibrium superconductivity model. (C) 2008 American Institute of Physics.
Pubblicato
Rilevanza internazionale
Articolo
Sì, ma tipo non specificato
Settore FIS/03 - Fisica della Materia
English
Current voltage characteristics; Josephson junction devices; Optical fibers; Optical pumping; Silicon wafers; Superconductivity; Waveguides; Nonequilibrium superconductivity model; Optical channel waveguides; Optical circuits; Sol-gel waveguides; Superconducting films
Stella, F., Casalboni, M., Cirillo, M., Merlo, V., Palazzesi, C., Pepe, G.P., et al. (2008). Integrating superconductive and optical circuits. APPLIED PHYSICS LETTERS, 92(20) [10.1063/1.2931700].
Stella, F; Casalboni, M; Cirillo, M; Merlo, V; Palazzesi, C; Pepe, G; Prosposito, P; Salvato, M
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2108/55275
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