Nonlinear optical properties of CdSe quantum dots
作者:
S. H. Park,
Michael P. Casey,
Joel Falk,
期刊:
Journal of Applied Physics
(AIP Available online 1993)
卷期:
Volume 73,
issue 12
页码: 8041-8045
ISSN:0021-8979
年代: 1993
DOI:10.1063/1.353919
出版商: AIP
数据来源: AIP
摘要:
The nonlinear optical properties of CdSe quantum dots are investigated using self‐saturation and degenerate four‐wave mixing techniques. The saturation of the room temperature absorption coefficient, for a wavelength in the vicinity of the first exciton peak, is measured. The measured data can be predicted from a description of the quantum dot as a two level, homogeneously broadened, saturating system. The variation of the four‐wave mixing reflectivity with intensity and with wavelength is reported. All four‐wave mixing data are also consistent with the homogeneously‐broadened two‐level model.
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