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Emission of Terahertz Waves From Stacks of Intrinsic Josephson Junctions

By patterning mesoscopic crystals of Bi 2 Sr 2 CaCu 2 O 8 (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 tempera...

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Bibliographic Details
Published in:IEEE transactions on applied superconductivity 2009-06, Vol.19 (3), p.886-890
Main Authors: Gray, K.E., Ozyuzer, L., Koshelev, A.E., Kurter, C., Kadowaki, K., Yamamoto, T., Minami, H., Yamaguchi, H., Tachiki, M., Kwok, W.-K., Welp, U.
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Language:English
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Summary:By patterning mesoscopic crystals of Bi 2 Sr 2 CaCu 2 O 8 (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.
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2009.2017888