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Emission of terahertz waves from stacks of intrinsic Josephson junctions.

Conference · · IEEE Trans. Appl. Supercond.

By patterning mesoscopic crystals of Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 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.

Research Organization:
Argonne National Laboratory (ANL)
Sponsoring Organization:
SC; Japan Science and Technology; CREST project; Japan Society for the Promotion of Science; Turkish TUBITAK; MEXT - Japan
DOE Contract Number:
AC02-06CH11357
OSTI ID:
962553
Report Number(s):
ANL/MSD/CP-62523
Journal Information:
IEEE Trans. Appl. Supercond., Journal Name: IEEE Trans. Appl. Supercond. Journal Issue: 3 ; Jun. 2009 Vol. 19
Country of Publication:
United States
Language:
ENGLISH