Quantum size effects on the third order optical nonlinearity of CdS quantum dots in Nafion
Optical nonlinearities of CdS quantum dots in the strongly confined regime are probed through degenerate four-wave-mixing experiments in an attempt to study the size dependence of the third order optical susceptibility χ (3). The results indicate that χ (3) is strongly dependent on the diameter of t...
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Published in | Optics communications Vol. 185; no. 4; pp. 457 - 465 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
Amsterdam
Elsevier B.V
15.11.2000
Elsevier Science |
Subjects | |
Online Access | Get full text |
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Summary: | Optical nonlinearities of CdS quantum dots in the strongly confined regime are probed through degenerate four-wave-mixing experiments in an attempt to study the size dependence of the third order optical susceptibility
χ
(3). The results indicate that
χ
(3) is strongly dependent on the diameter of the dots and that there is a large increase in
χ
(3) values as the diameter decreases below 2 nm. Polarization discrimination studies point to nonthermal contributions to the mechanism of optical nonlinearity. |
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Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 0030-4018 1873-0310 |
DOI: | 10.1016/S0030-4018(00)01009-9 |