M. Eckardt, A. Schwanhausser, F. Renner, L. Robledo, A. Friedrich, P. Pohl, P. Kiesel, S. Malzer, G. Dohler, D. Driscoll, M. Hanson, A. Gossard
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Novel concept for THz-photomixer based on periodically doped heterostructures and quasi ballistic transport
Reports on a new concept for THz photomixers, which are not (as usually) frequency limited by the carrier lifetime in low-temperature-grown GaAs. The concept is based on ballistic electron transport in a periodically doped heterostructure (p-i-n-p-i-n-superlattice) and allows for impedance matching to the attached antenna.
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