首页|Effects of hydrostatic pressure, temperature and Al-concentration on the second-harmonic generation of tuned quantum dot/ring under a perpendicular magnetic field
Effects of hydrostatic pressure, temperature and Al-concentration on the second-harmonic generation of tuned quantum dot/ring under a perpendicular magnetic field
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NSTL
Elsevier
The simultaneous effects of hydrostatic pressure, temperature and Al-concentration on the second-harmonic generation (SHG) coefficient for GaAs/Ga1-xAlxAs tuned quantum dot/quantum ring (QD/QR) under parabolic inverse squared potential plus the modified Gaussian potential in a perpendicular magnetic field are studied in detail. The analytical expression of the SHG coefficient can be obtained using the density matrix theory and iterative method. The numerical results of GaAs/Ga(1-x)Al(x)A tuned QD/QR are given. The result of calculation illuminates that the applied magnetic field, Al-concentration, hydrostatic pressure, temperature and the harmonic confinement frequency can make an impact on energy level interval, the product of matrix elements, transition frequency and other factors so that the peak value of SHG coefficient and resonance peak changing under the action of these factors. Furthermore, the depth and the radius of the QD have a bearing on the SHG coefficient.
NSTL
Elsevier
