Zobrazeno 1 - 10
of 82
pro vyhledávání: '"V. Jucienė"'
Publikováno v:
Semiconductors. 48:1557-1561
The possibilities of distinguishing highly coherent terahertz emission at a specified frequency from the incoherent thermal emission of a hot body are considered. It is experimentally shown that the smooth planar surface (with no diffraction guides)
Publikováno v:
Applied Physics A. 115:199-202
The thermally stimulated excitation of radiative modes of surface plasmon–phonon polaritons in GaAs followed by the high-power terahertz (THz) radiation selective emission is studied and experimentally observed. The selective high-power THz radiati
Autor:
K. Požela, S. S. Pushkarev, G. B. Galiev, E. A. Klimov, V. Jucienė, Yu. Požela, I. S. Vasil’evskii, A. Šilenas
Publikováno v:
Semiconductors. 47:372-375
The dependence of the electron mobility and drift velocity on the growth conditions, thickness, and doping of an InAs insert placed at the center of the quantum well in a selectively doped InAlAs/InGaAs/InAlAs heterostructure has been investigated. R
Publikováno v:
Applied Physics A. 110:153-156
Surface phonon and plasmon–phonon polariton characteristics of GaAs, Al x Ga1−x As/GaAs, and GaN/Al2O3 layered structures are investigated by means of terahertz radiation reflection spectroscopy. The strong resonant absorption peaks and selective
Publikováno v:
Applied Physics A. 109:233-237
The alternating change of electron mobility values in the modulation doped InAlAs/InGaAs/InAlAs quantum well (QW) dependently on a thickness of the InAs layer inserted in the center of the QW is theoretically predicted and experimentally observed. Th
Publikováno v:
Semiconductors. 45:761-765
The field dependence of drift velocity of electrons in quantum wells of selectively doped In0.5Ga0.5As/AlxIn1 − xAs and In0.2Ga0.8As/AlxGa1 − xAs heterostructures is calculated by the Monte Carlo method. The influence of varying the molar fractio
Autor:
G. B. Galiev, I. S. Vasil’evskii, E. A. Klimov, K. Požela, V. Jucienė, J. Požela, Yu. A. Matveev, A. Sužiedėlis, Č. Paškević
Publikováno v:
Semiconductors. 44:898-903
The electron conduction in a two-dimensional channel of an In0.52Al0.48As/In0.53Ga0.47As/In0.52Al0.48As quantum well (QW) with a δ-Si doped barrier has been investigated. It is shown that the introduction of thin InAs barriers into the QW reduces th
Autor:
V. Jucienė, S. S. Mikhrin, V. S. Mikhrin, K. Požela, J. Požela, A. Sužiedėlis, A. S. Shkolnik
Publikováno v:
Semiconductors. 43:1590-1596
The scattering rate of electrons in a quantum well by localized polar optical and interface phonons is considered. The dependence of the force of the electron-phonon interaction on the frequency of optical phonons in materials of the heterostructure
Autor:
Č. Paškević, V. G. Mokerov, I. S. Vasil’evskii, A. Sužiedėlis, J. Požela, K. Požela, G. B. Galiev, V. Jucienė
Publikováno v:
Semiconductors. 43:458-462
It is experimentally found that the maximum drift velocity of electrons in quantum wells of differently arranged AlGaAs/GaAs heterostructures and pseudoamorphous Al0.36Ga0.64As/In0.15Ga0.85 As heterostructures is higher than the maximum drift velocit
Publikováno v:
Acta Physica Polonica A. 113:989-992
A new approach for reduction of scattering rate of electrons by polar optical phonons in the double barrier heterojunction quantum well is proposed. This approach is based on the phonon localization in narrow phonon wells. The enhancement of the elec