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20112023
most citedOptimization of quantum cascade laser operation by geometric design of cascade active band in open and closed models

11 citations · 48 across the 13 of their papers we have counts for

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Showing cond-mat.mes-hallShow all

8 papers · 1 filter

cond-mat.mes-hall2023

Spectral properties of a broadband far infrared photodetector with a new design of active region

M. V. Tkach, Ju. O. Seti, O. M. Voitsekhivska +1

A quantum theory of spectral parameters and oscillator strengths of quantum transitions in an active region, which contains cascades of wide quantum wells with a complicated potent…

cond-mat.mes-hall2015★ 7 cited

Renormalized energy of ground and first excited state of Fröhlich polaron in the range of weak coupling

M. V. Tkach, Ju. O. Seti, O. M. Voitsekhivska +1

Partial summing of infinite range of diagrams for the two-phonon mass operator of polaron described by Fröhlich Hamiltonian is performed using the Feynman-Pines diagram technique.…

cond-mat.mes-hall2014★ 7 cited

The effect of interface phonons on operating electron states in three-barrier resonant tunneling structure as an active region of quantum cascade detector

M. V. Tkach, Ju. O. Seti, Y. B. Grynyshyn +1

The Hamiltonian of electrons interacting with interface phonons in three-barrier resonant tunneling structure is established using the first principles within the models of effecti…

cond-mat.mes-hall2013★ 11 cited

Optimization of quantum cascade laser operation by geometric design of cascade active band in open and closed models

M. V. Tkach, Ju. O. Seti, I. V. Boyko +1

Using the effective mass and rectangular potential approximations, the theory of electron dynamic conductivity is developed for the plane multilayer resonance tunnel structure plac…

cond-mat.mes-hall2012★ 1 cited

Quasi-stationary states of electrons interacting with strong electromagnetic field in two-barrier resonance tunnel nano-structure

M. V. Tkach, Ju. O. Seti, O. M. Voitsekhivska

An exact solution of non-stationary Schrodinger equation is obtained for a one-dimensional movement of electrons in an electromagnetic field with arbitrary intensity and frequency.…

cond-mat.mes-hall2012★ 3 cited

Non-perturbation theory of electronic dynamic conductivity for two-barrier resonance tunnel nano-structure

M. V. Tkach, Ju. O. Seti, O. M. Voitsekhivska

The non-perturbation theory of electronic dynamic conductivity for open two-barrier resonance tunnel structure is established for the first time within the model of rectangular pot…