Program

P.5 -- Poster, NCTP-40

Date: Monday, 27 July 2015

Time: 14h00 - 15h30

Phonon-assisted cyclotron resonance in AlGaAs-GaAs hyperbolic quantum well via two-photon absorption process

Le Dinh (1), Luong Van Tung (2), Pham Tuan Vinh (1,2)

(1) Department of Physics and Center for Theoretical and Computational Physics, Hue University’s College of Education, Hue, Viet Nam; (2) Department of Physics, Dong Thap University, Dong Thap, Viet Nam.

Phonon–assisted cyclotron resonance (PACR) in AlGaAs-GaAs hyperbolic quantum well is investigated via two–photon absorption process when electrons are scattered by longitudinal optical phonons (LO–phonons). Using the Green’s function method, we obtain the expression of absorption power in the case of two–photon absorption. The dependence of absorption power on photon energy with different values of magnetic field, diffusion length and well width is indicated. The results are compared those to the quantum well models with different types of confined potentials.

Presenter: Pham Tuan Vinh