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Enhanced three-photon absorption and nonlinear refraction in ZnS and doped ZnS quantum dots
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10.1063/1.3254186
/content/aip/journal/apl/95/16/10.1063/1.3254186
http://aip.metastore.ingenta.com/content/aip/journal/apl/95/16/10.1063/1.3254186

Figures

Image of FIG. 1.
FIG. 1.

Open aperture z-scan transmission traces of all the samples; black, green, and red curves are for , , and samples, respectively. Dotted and solid curves are theoretical ones, considering 2PA and 3PA, respectively. The inset (a) shows the variation of with . The solid line represents the linear fit to the data which gives the slope , indicating 3PA process. The inset (b) shows the variation of with of ZnS QDs. The solid curve is theoretically fitted one considering 3PA saturation model of Ref. 12 . Symbols are experimental points in every case.

Image of FIG. 2.
FIG. 2.

Closed aperture z-scan transmission traces at an intensity . Symbols are experimental points and solid curves are theoretically fitted ones following the method described in detail in Ref. 6 .

Tables

Generic image for table
Table I.

Nonlinear three-photon absorption and refraction coefficients, measured at 532 nm wavelength. The experimental error in each data is estimated to be 10%. , , and samples are undoped, 1% doped, and 2.5% doped ZnS QDs, respectively.

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/content/aip/journal/apl/95/16/10.1063/1.3254186
2009-10-23
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Enhanced three-photon absorption and nonlinear refraction in ZnS and Mn2+ doped ZnS quantum dots
http://aip.metastore.ingenta.com/content/aip/journal/apl/95/16/10.1063/1.3254186
10.1063/1.3254186
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