The density matrix approach has been employed to investigate the opticalnonlinear polarization in a single semiconductor quantum dot(QD). Electron states are considered tobe confined within a quantum dot with infinite...The density matrix approach has been employed to investigate the opticalnonlinear polarization in a single semiconductor quantum dot(QD). Electron states are considered tobe confined within a quantum dot with infinite potential barriers. It is shown, by numericalcalculation, that the third-order nonlinear optical susceptibilities for a typical Si quantum dot isdependent on the quantum size of the quantum dot and the frequency of incident light.展开更多
基金Supported by the Committee of Science and Tech nology of Wuhan(1320017010121)
文摘The density matrix approach has been employed to investigate the opticalnonlinear polarization in a single semiconductor quantum dot(QD). Electron states are considered tobe confined within a quantum dot with infinite potential barriers. It is shown, by numericalcalculation, that the third-order nonlinear optical susceptibilities for a typical Si quantum dot isdependent on the quantum size of the quantum dot and the frequency of incident light.
