Abstract
Evidence is presented for a 1.0-THz acoustic phonon parametric oscillator produced by acousto-optic phase-conjugate degenerate four-wave mixing in a THz-laser- pumped silicon doping superlattice. Coherent nanosecond-pulsed THz compressional and shear waves with different pumping thresholds were observed.
© 2019 The Author(s)
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