The bias voltage applied to a weakly coupled n-doped GaAs/AlAs superlattice increases the
amplitude of the coherent hypersound oscillations generated by a femtosecond optical …

We report measurements of acoustic phonon emission from a weakly coupled AlAs/GaAs
superlattice (SL) under vertical electron transport. The phonons were detected using …

With asymptotic and numerical analyses, we systematically study the influence of slip length
and access Ohmic resistance (due to pore-end field focusing and concentration polarization) …

Driven primarily by scientific curiosity, but also by the potential applications of intense
sources of coherent sound, researchers have targeted the phonon laser (saser) since the …

Electro-phononics aims at develo** devices which transform high frequency acoustic
waves into electrical or microwave signals and back. This would eliminate the need for …

Phonon lasers, coherent oscillations of phonons, have gradually become one of the
emerging frontiers in the last decades, and have promising applications in quantum sensing …

High-purity and doped ZnTe microstructures were synthesized with a single thermal
evaporation method. The morphology of doped ZnTe microstructures shows multilayered …

Phonon optics concerns operations with high-frequency acoustic waves in solid media in a
similar way to how traditional optics operates with the light beams (ie photons). Phonon …

Measurements have been made of the transient changes in tunnel current Δ I through a
biassed 50 period Si doped GaAs/AlAs superlattice produced by pulses of nonequilibrium …

In a semiconductor superlattice (SL), phonon-assisted electron transitions can occur under a
quasi-population inversion, brought about by electrical biasing. This paper demonstrates the …