The influence of an external magnetic field
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Based on the quantum kinetic equation for electrons, we theoretically studied the Quantum Multi-photon Nonlinear Absorption of a Strong Electromagnetic Wave (EMW) in twodimensional graphene with electron-optical phonon scattering mechanism.
9p viambani 18-06-2024 3 1 Download
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In this work, we proposed a simple model for control of subluminal and superluminal light propagation via an external magnetic field in a lambda configuration degenerate two-level atomic medium. We show that the absorption-dispersion properties and group index under the influence of the strength of coupling laser and external magnetic fields are controlled.
8p viambani 18-06-2024 3 1 Download
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The effects of the intensity of the coupling laser field and the parameters of the system on the behavior of optical bistability are also considered. The proposed model is useful for applications in all-optical switches and magneto-optic storage devices.
12p spiritedaway36 28-11-2021 10 1 Download
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In this work, we proposed a simple model for control of optical properties via an external magnetic field in a vee-type degenerated atomic medium. By numerically solving the density matrix equations in the steady-state, we show that the absorption and dispersion properties are influenced by the strength of coupling laser and external magnetic fields.
8p vimax2711 27-03-2020 22 1 Download
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In this paper, we present the results of theoretical studies on the opticalelectric-magnetic properties of quantum wires in one-dirction semiconductors in two cases in the presence or absence of external magnetic fields.
15p vimoskva2711 02-01-2020 9 0 Download
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The Hall effect is studied theoretically in a doped semiconductor superlattice (DSSL) subjected to a crossed dc electric field and magnetic field in the presence of an intense electromagnetic wave (EMW). By using the quantum kinetic equation for electrons interacting with acoustic phonons at low temperature, we obtain expressions for the magnetoresistance as well as the Hall coefficient in dependence on the external fields and characteristic parameters of the DSSL. Analytical results are numerically evaluated for the GaAs:Si/GaAs:Be DSSL.
6p thuyliebe 09-10-2018 49 0 Download