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80年代以来,超微粒材料的光学非线性引起了广泛的注意,其大的三阶光学非线性系数和快的响应,可能在光电子学中获得应用。这种非线性,是由具有量子尺寸效应(quantum size effect)的超微粒中的载流子限域运动(carrier confinement)和载流子间相互作用引起的,局域场效应(local field effect)可增强这一非线性过程。尤其是
Since the 1980s, the optical nonlinearities of ultrafine particles have drawn much attention. Their large third-order optical nonlinearities and fast response may be used in optoelectronics. This non-linearity is caused by carrier confinement and carrier-to-carrier interactions in ultra-fine particles with a quantum size effect, local field effect, Can enhance this nonlinear process. especially