Cylindrical quantum wire

In this work, we investigated the optical absorption in a quasi-one-dimensional system subjected to an external electromagnetic wave. The optical absorption coefficient was calculated by using the perturbation theory taking account of the effect of the electron - impurity interaction. The numerical result for the GaAs/AlAs cylindrical semiconductor quantum wire showed the presence of the resonant absorption peaks.

6p viberkshire 09-08-2023 7 3   Download

Theoretical results for the AME field is numerically evaluated, plotted and discussed for the specific CQWIP AlGaAs/GaAs. The result shows that the dependence of the AME field on the temperature of the system is nonlinear. These results are compared with those of normal bulk semiconductors and quantum well to show the difference.

3p vispyker 16-11-2022 8 3   Download

The study results were numerically evaluated and graphed for GaAs/GaAsAl quantum wire. Then, the results in this case were compared with those in the case of the bulk semiconductors and other lowdimension systems in order to show the difference and the novelty of the current results.

8p tamynhan6 14-09-2020 12 2   Download

The results are numerically evaluated and graphed for a GaAs/GaAsAl CQW to shows clearly the dependence of Hall conductivity and HC on above parameters. The obtained results are very different in comparison to our previous results in the case two-dimensional system (2D) and bulk semiconductor.

9p thithizone1 18-07-2019 20 0   Download

The results are compared with those in the case of one-photon absorption process. The calculations demonstrate that two-photon absorption process is sufficient strong to be detected in CR.

9p sieunhansoibac7 26-04-2018 34 0   Download

The Hall Effect in bulk semiconductors under the influence of the Electromagnetic wave (EMW) has been studied in much details. The Hall effect is the production of a voltage difference (the Hall voltage) across an electrical conductor, transverse to an electric current in the conductor and a MF perpendicular to the current. It was discovered by Edwin Hall in 1879.

7p truongtien_09 08-04-2018 60 1   Download

Based on the quantum kinetic equation method, the influence of confined optical phonons and laser radiation on the Radioelectric effect in a cylindrical semiconductor quantum wire with parabolic potential subjected to a dc electric field and a linearly polarized electromagnetic wave has been theoretically studied.

6p truongtien_09 08-04-2018 27 0   Download

The photon - drag effect with electrons – acoustic phonon scattering in cylindrical quantum wire with an infinite potential is studied. With the appearance of the linearly polarized electromagnetic wave, the laser radiation field and the dc electric field, analytic expressions for the density of the direct current are calculated by the quantum kinetic equation.

7p truongtien_09 08-04-2018 48 0   Download

The nonlinear absorption of a strong electromagnetic wave caused by confined electrons in cylindrical quantum wires is theoretically studied by using the quantum kinetic equation for electrons. The problem is considered in the case electron-acoustic phonon scattering. Analytic expressions for the dependence of the nonlinear absorption coefficient of a strong electromagnetic wave by confined electrons in rectangular quantum wires on the temperature T are obtained.

6p tuanlocmuido 19-12-2012 50 1   Download