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Updated: Oct 13, 2025

Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters
Published on: July 8, 2013
Increasing the Efficiency of a Spintronic THz Emitter Based on WSe2/FeCo
Dinar Khusyainov1, Andrey Guskov1, Sergei Ovcharenko1
1Department of Nanoelectronics, MIREA-Russian Technological University, 119454 Moscow, Russia.
Abstract:
We report an increase in terahertz (THz) radiation efficiency due to FeCo/WSe2 structures in the reflection geometry. This can be attributed to an absorption increase in the alloy FeCo layer at the input FeCo/WSe2 interface due to constructive interference, as well as to the backward transport of hot carriers from FeCo to WSe2. In contrast to the transmission geometry, the THz generation efficiency in the reflection is much less dependent on the magnetic layer thickness. Our results suggest a cheap and efficient way to improve the characteristics of THz spintronic emitters with the conservation of a full set of their important properties.
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