Journal
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS
Volume 491, Issue -, Pages 24-29Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physc.2012.11.008
Keywords
Intrinsic Josephson junctions; Terahertz radiation; Synchronization; Mesa array
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Using mesa array fabricated at the top of Bi2Sr2CaCu2O8 single crystal was demonstrated recently as a promising route to enhance the radiation power generated by the Josephson oscillations in mesas. We study the synchronization in such an array via the plasma waves in the base crystal. First, we analyze plasma oscillations inside the base crystal generated by the synchronized mesa array and the associated dissipation. We then solve the dynamic equation for the superconducting phase numerically to find conditions for synchronization and to check the stability of the synchronized state. We find that the mesas are synchronized when the cavity resonance of mesas matches with that of the base crystal. An optimal configuration of the mesa arrays is also obtained. (C) 2012 Elsevier B.V. All rights reserved.
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