Renk, Karl Friedrich and Stahl, Benjamin Ingo and Rogl, Andreas and Janzen, T. and Pavel'ev, D. and Koschurinov, Y. and Ustinov, V. and Zhukov, A.
Terahertz superlattice parametric oscillator.
We report a GaAs/AlAs superlattice parametric oscillator. It was pumped by a microwave field (power few mW) and produced 3rd harmonic radiation (frequency near 300 GHz). The nonlinearity of the active superlattice was due to Bragg reflections of conduction electrons at the superlattice planes. A theory of the nonlinearity indicates that parametric oscillation should be possible up to frequencies ...
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