K.I. Rudakov - Post-graduate Student, Moscow Institute of Physics and Technology. Е-mail: rudakov@phystech.edu P.N. Dmitriev - Ph.D. (Phys.-Math.), Kotelnikov IRE RAS (Moscow). Е-mail: pavel@hitech.cplire.ru V.P. Koshelets - Dr.Sc. (Phys.-Math.), Head of Laboratory, Kotelnikov IRE RAS (Moscow). Е-mail: valery@hitech.cplire.ru A.M. Baryshev - Ph.D. (Phys.-Math.), Professor, University of Groningen, SRON. Е-mail: a.m.baryshev@sron.nl A.V. Khudchenko - Ph.D. (Phys.-Math.), University of Groningen, SRON. Е-mail: a.khudchenko@sron.nl

The investigation of superconducting receiver in terahertz frequency range of 0,7-1,1 THz has been performed. To determine the electrical parameters of the structure we compared the experimentally measured characteristics of the receiver with the numerical simulation results of a superconducting receiving element (superconductor-insulator-superconductor (SIS) transition NbTiN-Nb-AlN-NbN). Measurements were made for four the receiving element versions, a method of complete 3d modeling superconducting structures to determine the specific capacity for the using SIS junctions (Csp = 80 fF/mkm²).

 

1. Kasemann C., Güsten R., Heyminck S., Klein B., Klein T. et al. CHAMP+: a powerful array receiver for APEX // Proc. of SPIE. 2006. V. 6275.
2. Sazonov D.M., Gridin A.N., Mishustin B.A. Ustrojjstva SVCH / Ucheb. posobie. M.: Vyssh. shkola. 1981.
3. Barone A., Paterno Dzh-F. EHffekt Dzhozefsona. Fizika i Primenenija. M.: Mir. 1984.
4. Rudakov K.I., Koshelec V.P. Opredelenie vysokochastotnykh parametrov sverkhprovodnikovykh tonkoplenochnykh struktur // Nelinejjnyjj mir. 2014. № 2. S.20-21.
5. Turneaure J.P., Halbritter J., Schwettman H.A. The Surface Impedance of Superconductors and Normal Conductors: The Mattis-Bardeen Theory // Journal of Superconductivity. 1991. V. 4. № 5. P. 341-354.