Abstract
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.
- Received 26 July 1991
DOI:https://doi.org/10.1103/PhysRevLett.68.1200
©1992 American Physical Society