Three-photon absorption in ZnSe and ZnSe/ZnS quantum dots

dc.contributor.author	Lad, Amit D.
dc.contributor.author	Prem Kiran, P.
dc.contributor.author	Kumar, G. Ravindra
dc.contributor.author	Mahamuni, Shailaja
dc.date.accessioned	2022-03-27T11:52:55Z
dc.date.available	2022-03-27T11:52:55Z
dc.date.issued	2007-04-08
dc.description.abstract	ZnSe and ZnSe/ZnS core/shell quantum dots (QDs) of two different sizes (4.5 and 3.5 nm) have been synthesized. The nonlinear absorption is measured at 1064 nm using a 35 ps laser with an open aperture Z-scan setup. Three-photon absorption (3PA) has been observed in ZnSe and ZnSe/ZnS QDs. 3PA cross section is found to be about four orders of magnitude larger than bulk ZnSe, and three orders of magnitude higher than ZnS QDs. 3PA cross section is found to be increased in ZnSe and in ZnSe/ZnS QDs with decreasing size from 4.5 to 3.5 nm, due to strong confinement effect. © 2007 American Institute of Physics.
dc.identifier.citation	Applied Physics Letters. v.90(13)
dc.identifier.issn	00036951
dc.identifier.uri	10.1063/1.2714994
dc.identifier.uri	http://aip.scitation.org/doi/10.1063/1.2714994
dc.identifier.uri	https://dspace.uohyd.ac.in/handle/1/14921
dc.title	Three-photon absorption in ZnSe and ZnSe/ZnS quantum dots
dc.type	Journal. Article
dspace.entity.type

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