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Lê Đình, Trần Thị Ngọc Anh, Phạm Tuấn Vinh; Phạm Tuấn Vinh(1)

Optically detected electron - phonon resonances in hyperbolic Poschl-Teller quantum wells

Tạp chí Khoa học & Giáo dục - Trường Đại học Sư phạm, Đại học Huế

2018

01(45)

Abstract The explicit expressions for linearly optical conductivity and absorption power of electromagnetic wave caused by confined electrons in the hyperbolic quantum well is obtained in the case of electron-longitudinal optical phonon scattering. Linearly optically detected electrophonon resonance (ODEPR) effect in a specific GaAs/AlAs hyperbolic quantum well with P¨oschl-Teller potential type is investigated. Conditions for ODEPR are discussed based on the curves expressing the dependence of absorption power on the photon energy. From these curves we obtained ODEPR - linewidths as profiles of the curves. Computational results show that linear ODEPR- linewidths increase with temperature and decrease with well parameters. Keywords absorption power, quantum well, hyperbolic, P¨oschl Teller potential, ODEPR- linewidths