Programme

P.6 -- Poster, NCTP-39

Date: Tuesday, 29-07-2014

Time: 10h30 - 12h00

THE INFLUENCE OF CONFINED ACOUSTIC PHONONS ON THE RADIOELECTRIC FIELD IN A QUANTUM WELL

Do Tuan Long(*), Nguyen Quang Bau

Faculty of Physics, Hanoi University of Science, Vietnam National University 334-Nguyen Trai, Thanh Xuan, Hanoi, Vietnam

The influence of confined acoustic phonons on the Radioelectric field in a quantum well has been studied in the presence of a linearly polarized electromagnetic wave and a laser radiation. By using the quantum kinetic equation for electrons with confined electrons – confined acoustic phonons interaction, the analytical expression for the Radioelectric field is obtained. The formula of the Radioelectric field contains the quantum number m characterizing confined phonons and comes back to the case of unconfined phonons when m reaches to zero. The dependence of the Radioelectric field on the frequency of the laser radiation, in case of confined acoustic phonons, is also achieved by numerical method for a specific quantum well AlGaAs/GaAs/AlGaAs. The result shows that the Radioelectric field has a peak and reaches saturation as the frequency of the laser radiation increases.

Presenter: Do Tuan Long