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8 October 2004 Large-area traveling-wave LT-GaAs photomixers for LO application
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A new type of geometry for terahertz traveling-wave photomixers, vertically pumped free-space by two detuned continuous-wave diode lasers, is proposed and experimentally verified for devices based on low-temperature-grown GaAs (LT-GaAs). It combines the advantages of conventional interdigitated small area structures and traveling-wave devices. An output power of 1 μW at the mixing frequency of 1 THz was measured as a first result, which meets power requirements for superconducting heterodyne mixer devices.
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Ernest A. Michael, Martin Mikulics, Michel Marso, Peter Kordos, Hans Lüth, Bernd Vowinkel, Rudolf Schieder, and Jurgen Stutzki "Large-area traveling-wave LT-GaAs photomixers for LO application", Proc. SPIE 5498, Millimeter and Submillimeter Detectors for Astronomy II, (8 October 2004);

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