Superlattice nonlinearities for Gigahertz-Terahertz generation in harmonic multipliers
Semiconductor superlattices are strongly nonlinear media offering several technological
challenges associated with the generation of high-frequency Gigahertz radiation and very …
challenges associated with the generation of high-frequency Gigahertz radiation and very …
[HTML][HTML] Controlling the harmonic conversion efficiency in semiconductor superlattices by interface roughness design
In semiconductor superlattices, when Bragg oscillating electrons interact with an input
electromagnetic field, frequency multiplication is possible. An ideal superlattice has a purely …
electromagnetic field, frequency multiplication is possible. An ideal superlattice has a purely …
Effect of temperature on resonant electron transport through stochastic conduction channels in superlattices
We show that resonant electron transport in semiconductor superlattices with an applied
electric and tilted magnetic field can, surprisingly, become more pronounced as the lattice …
electric and tilted magnetic field can, surprisingly, become more pronounced as the lattice …
[HTML][HTML] Coexistence of bloch and parametric mechanisms of high-frequency gain in doped superlattices
The detailed theoretical study of high-frequency signal gain, when a probe microwave signal
is comparable to the AC pump electric field in a semiconductor superlattice, is presented …
is comparable to the AC pump electric field in a semiconductor superlattice, is presented …
Potential and limits of superlattice multipliers coupled to different input power sources
A theoretical study is presented to assess the performance of semiconductor superlattice
(SL) multipliers as a function of the currently available input power sources. The prime …
(SL) multipliers as a function of the currently available input power sources. The prime …
Dissipative Parametric Gain in a Superlattice
V Čižas, L Subačius, NV Alexeeva, D Seliuta, T Hyart… - Physical Review Letters, 2022 - APS
Parametric generation of oscillations and waves is a paradigm, which is known to be
realized in various physical systems. Unique properties of quantum semiconductor …
realized in various physical systems. Unique properties of quantum semiconductor …
Terahertz Bloch oscillator with a modulated bias
Electrons performing Bloch oscillations in an energy band of a dc-biased superlattice in the
presence of weak dissipation can potentially generate THz fields at room temperature. The …
presence of weak dissipation can potentially generate THz fields at room temperature. The …
Model of the Influence of an External Magnetic Field on the Gain of Terahertz Radiation<? format?> from Semiconductor Superlattices
We theoretically analyze the influence of magnetic field on small-signal absorption and gain
in a superlattice. We predict a very large and tunable THz gain due to nonlinear cyclotron …
in a superlattice. We predict a very large and tunable THz gain due to nonlinear cyclotron …
Bloch gain in dc-ac-driven semiconductor superlattices in the absence of electric domains
We theoretically study the feasibility of amplification and generation of terahertz radiation in
dc-ac-driven semiconductor superlattices in the absence of electric domains. We find that if …
dc-ac-driven semiconductor superlattices in the absence of electric domains. We find that if …
Influence of the constant electric field on the mutual rectification of the electromagnetic waves in graphene superlattice
SV Kryuchkov, EI Kukhar - Physica E: Low-dimensional Systems and …, 2012 - Elsevier
In tight binding approximation the explicit view of electron energy in graphene superlattice
was derived. The possibility of propagation of the cnoidal waves in graphene superlattice is …
was derived. The possibility of propagation of the cnoidal waves in graphene superlattice is …