Below-band-gap third-order optical nonlinearity of nanometer-size semiconductor crystallites
- 24 February 1992
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 68 (8) , 1200-1203
- https://doi.org/10.1103/physrevlett.68.1200
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.Keywords
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