Emission of Terahertz Waves from Stacks of Intrinsic Josephson Junctions
By patterning mesoscopic crystals of Bi2Sr2CaCu2O8 (BSCCO) into electromagnetic resonators the oscillations of a large number of intrinsic Josephson junctions can be synchronized into a macroscopic coherent state accompanied by the emission of strong continuous wave THz-radiation. The temperature dependence of the emission is governed by the interplay of self-heating in the resonator and by re-trapping of intrinsic Josephson junctions which can yield a strongly non-monotonic temperature dependence of the emission power. Furthermore, proper shaping of the resonators yields THz-sources with voltage-tunable emission frequencies.
K. E. Gray and A. E. Koshelev and C. Kurter and K. Kadowaki and T. Yamamoto and H. Minami and H. Yamaguchi and M. Tachiki and W. Kwok and U. W. Welp, "Emission of Terahertz Waves from Stacks of Intrinsic Josephson Junctions," IEEE Transactions on Applied Superconductivity, vol. 19, no. 3, pp. 886-890, Institute of Electrical and Electronics Engineers (IEEE), Jun 2009.
The definitive version is available at http://dx.doi.org/10.1109/TASC.2009.2017888
Geosciences and Geological and Petroleum Engineering
Keywords and Phrases
Coherent state; Continuous Wave; Electromagnetic resonators; Emission power; Intrinsic Josephson junction; Intrinsic josephson junctions; Mesoscopics; Self-heating; Temperature dependence; Terahertz waves; THz-radiation; Voltage-tunable; Electric potential; Optical frequency conversion; Resonators; Temperature distribution; Josephson junction devices
International Standard Serial Number (ISSN)
Article - Journal
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