Programme

P.65 -- Poster, VCTP-49

Date: Friday, 2 August 2024

Time: 08:30 - 10:00

Influence of acoustic phonons on nonlinear optical-manegto absorption in special asymmetric hyperbolic quantum wells

Pham T. Vinh (1), Quach K. Quang (1), Tran T. B. Tran (1), Le Dinh (2)

(1) Division of Physics, School of Education, Dong Thap University, Cao Lanh 870000, Vietnam (2) Faculty of Physics, University of Education, Hue University, No. 34 Le Loi, Hue City, 530000, Vietnam

In this work, the nonlinear optical-manegto absorption properties have been theoretically investigated in a special asymmetric hyperbolic quantum well (SAHQW) when electrons are scattered with acoustic phonons (AP). The explicit analytic expression for the magneto-optical absorption coefficient (MOAC) is obtained using the perturbation theory to consider the transition probability for two photon absorption processes. Computational results show that the MOAC as well as the full width at half maximum (FWHM) of the linear and nonlinear optical-manegto resonance peaks both increase with temperature and decrease with the characteristic parameters of the quantum well. Moreover, these results are also compared with different confinement models and with previous studies in both theoretically and experimentally.

Presenter: Lê Đình