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Tim Benseman, Argonne National Laboratory, U.S.A.
Tuesday 05 March 2013, 11:15-12:15
Terahertz radiation from Bi2Sr2CaCu2O8 interlayer Josephson junctions: Progress and future strategies.
- đ¤ Speaker: Tim Benseman, Argonne National Laboratory, U.S.A.
- đ Date & Time: Tuesday 05 March 2013, 11:15 - 12:15
- đ Venue: Small Lecture Theatre, Cavendish Laboratory, Department of Physics
Abstract
At present, no bright compact sources of coherent radiation exist in the range from approximately 0.5 THz to 1.3 THz. This region is of particular interest for a range of scientific, medical, and security-related applications. Stacks of intrinsic Josephson junctions in extremely anisotropic high-temperature superconductors are one of the most promising candidate devices in this frequency range. In order to generate practically useful levels of power from these stacks, it is necessary to obtain efficient phase-synchronised emission from the largest possible number of individual Josephson junctions. I will discuss recent progress made at Argonne towards this goal, and possible approaches for generating power levels in the milliwatt range, which are necessary for most applications.
Series This talk is part of the Quantum Matter Seminar series.
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