Galin M. A.
1, Revin L. S.
1,2, Levichev M. Yu.
1, Parafin A. E.
1, Masterov D. V.
1, Kurin V. V.
1, Shereshevsky I. A.
1, Vdovicheva N. K.
11Institute for Physics of Microstructures, Russian Academy of Sciences, Nizhny Novgorod, Russia
2Alekseev State Technical University, Nizhny Novgorod, Russia
Email: galin@ipmras.ru, rls@ipmras.ru, levichev@ipmras.ru, parafin@ipmras.ru, masterov@ipmras.ru, kurin@ipmras.ru, ilya@ipmras.ru, hope@ipmras.ru
The phenomenon of multi-frequency generation was revealed in experimental study of electromagnetic radiation spectra of a large low-temperature Josephson junction array fabricated on the basis of niobium. The array spectrum was measured by a superconducting receiver with a high-temperature bicrystal Josephson junction. Numerical simulation of Josephson system similar to that studied experimentally showed that the multi-frequency generation regime occurs when the junction array contains eigenmodes with close frequencies. Keywords: Josephson junction array, bicrystal Josephson junction, spectroscopy, FDTD method, resonator.
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