Nonlinear phonon-assisted cyclotron resonance via two-photon process in asymmetrical Gaussian potential quantum wells
作者： Le Dinh , Huynh Vinh Phuc
DOI: 10.1016/J.SPMI.2015.07.034
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摘要: Abstract We theoretically study the combined effect of aluminum concentration and hydrostatic pressure on nonlinear phonon-assisted cyclotron resonance (PACR) in asymmetrical Gaussian potential quantum wells (AGPQWs). The confined interface phonon modes PACR is also studied. analytical expression magneto-optical absorption coefficient (MOAC) obtained by relating it to transition probability for photons. numerical results are calculated both bulk GaAs GaAs/Ga 1− x Al As materials. show that MOAC decreases magnitude gives a red-shift as increase, while half-width at half-maximum (HWHM) increases with concentration, but one- two-photon processes. can be used control optical properties AGPQWs.
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