Excitonic optical nonlinearity and exciton dynamics in semiconductor quantum dots
- 15 December 1987
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 36 (17) , 9293-9296
- https://doi.org/10.1103/physrevb.36.9293
Abstract
Two salient features of the excitonic state in semiconductor quantum dots are theoretically clarified. One is the enhanced excitonic optical nonlinearity arising from the state filling of discrete levels due to the quantum size effect. The calculated third-order nonlinear susceptibility explains successfully the recent experimental results. The other feature is the exciton dynamics in semiconductor quantum dots. A comprehensive interpretation is presented for the fast- and slow-decay components in phase conjugation and luminescence measurements.Keywords
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