Below-band-gap third-order optical nonlinearity of nanometer-size semiconductor crystallites
D. CotterBritish Telecom Laboratories, Martlesham Heath, Ipswich, Suffolk IP5 7RE, United KingdomM G BurtBritish Telecom Laboratories, Martlesham Heath, Ipswich, Suffolk IP5 7RE, United KingdomR.J. ManningBritish Telecom Laboratories, Martlesham Heath, Ipswich, Suffolk IP5 7RE, United Kingdom
1992en
ABI
Annotatsiya
We find evidence that quantum confinement of electrons in small semiconductor particles causes the nonlinear optical properties in the transparency region to differ markedly from those of bulk semiconductors. The optical Stark effect makes the dominant contribution to the third-order refractive nonlinearity.
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