Hydrostatic pressure and temperature effect on the nonlinear optical properties in semi-parabolic plus semi-inverse squared quantum well

Abstract

In this study, the effects of hydrostatic pressure and temperature on nonlinear optical rectification (OR), second-harmonic generation (SHG), third-harmonic generation (THG) and the linear, nonlinear, and total optical absorption coefficients (OACs) of a semiparabolic plus semi-inverse squared quantum well (QW) are theoretically investigated. The results show that hydrostatic pressure and temperature have significant effects on the optical properties of semiparabolic plus semi-inverse squared QWs, and that the energy levels and magnitudes of the resonant peaks of OR, SHG, THG, and the total OACs vary according to the shape of the limiting potential, the hydrostatic pressure, and the temperature. It is easily seen that the peak positions of the resonant peaks of OR, SHG, THG, and the total OACs in the semiparabolic plus semi-inverse squared QW show a red shift with increasing hydrostatic pressure, but a blue shift with increasing temperature. Therefore, the magnitude and position of the resonant peaks of OR, SHG, THG, and the total OACs can be adjusted by changing the hydrostatic pressure and the temperature, which promise a new degree of freedom in the tunability of various electro-optical devices.

Effects of Impurities and Deformations on Electronic Effective Mass in Quantum Revival Time within the Infinite Square Well

“…Furthermore, we explore the impact of deformations on the electronic effective mass on these quantities, that is, we consider electrons in GaAs/Ga 1−x Al x As [19]. Effects of hydrostatic pressure, temperature and aluminum concentration warrant attention due to pronounced modifications in physical quantities in electronic systems [20][21][22].…”

Effects of Impurities and Deformations on Electronic Effective Mass in Quantum Revival Time within the Infinite Square Well

“…Furthermore, we explore the impact of deformations on the electronic effective mass on these quantities, that is, we consider electrons in a GaAs/Ga 1−x Al x As [18]. Effects of hydrostatic pressure, temperature, and aluminum concentration warrant attention due to pronounced modifications in physical quantities in electronic systems [19][20][21].…”

Numerical Study of Temperature and Electric Field Effects on the Total Optical Absorption Coefficient in the Presence of Optical Inter-Conduction-Subband Transitions in InGaN/GaN Single Parabolic Quantum Wells

“…Recently, Aydinoglu et al have studied the nonlinear optical properties of asymmetric double-graded quantum wells under the effects of the structure parameters such as the central barrier's thickness and the aluminum concentrations [13]. Additionally, hydrostatic pressure and temperature effects on the nonlinear optical properties in semi-parabolic and semi-inverse squared QW have been investigated by Xu et al [15]. In our recently published paper [16], we investigated the influence of several types of confinement potential on the photovoltaic conversion properties of a single-intermediate band solar cell based on (In, Ga)N quantum well emerged in the intrinsic area of the typical p-i-n structure in which it is revealed that the performance of solar cells decreases with increasing temperature.…”

“…Additionally, Ungana et al [17] have showed that the linear and nonlinear optical properties in a GaAs/Ga0.7Al0.3As parabolic quantum well under the intense laser field can be tuned by changing the hydrostatic pressure and temperature. Xu et al [15] have examined the hydrostatic pressure and temperature effects on the nonlinear optical properties in semi-parabolic plus semi-inverse squared quantum well. They showed that hydrostatic pressure and temperature have significant impact on the optical properties of semi-parabolic plus semiinverse squared QWs, and that the energy levels and magnitudes of the resonant peaks of the total OACs vary according to the shape of the limiting potential, the hydrostatic pressure, and the temperature.…”