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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/6381
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dc.contributor.authorAnn Mary, K.A.-
dc.contributor.authorUnnikrishnan, N.V.-
dc.contributor.authorPhilip, Reji-
dc.date.accessioned2016-09-19T09:26:02Z-
dc.date.available2016-09-19T09:26:02Z-
dc.date.issued2015-11-
dc.identifier.citationPhysica E: Low-dimensional Systems and Nanostructures, 2015, Vol. 74, p151-155en_US
dc.identifier.issn1386-9477-
dc.identifier.urihttp://hdl.handle.net/2289/6381-
dc.descriptionRestricted Access.en_US
dc.description.abstractWe report optical and nonlinear optical properties of CuS quantum dots and nanoparticles prepared through a nontoxic, green, one-pot synthesis method. The presence of surface states and defects in the quantum dots are evident from the luminescent behavior and enhanced nonlinear optical properties measured using the open aperture Z-scan, employing 5 ns laser pulses at 532 nm. The quantum dots exhibit large effective third order nonlinear optical coefficients with a relatively lower optical limiting threshold of 2.3 J cm−2, and the optical nonlinearity arises largely from absorption saturation and excited state absorption. Results suggest that these materials are potential candidates for designing efficient optical limiters with applications in laser safety devices.en_US
dc.language.isoenen_US
dc.publisherElsevier B.V.en_US
dc.relation.urihttp://dx.doi.org/10.1016/j.physe.2015.06.031en_US
dc.rights2015 Elsevier B.V.en_US
dc.subjectOptical nonlinearityen_US
dc.subjectSurface statesen_US
dc.titleDefects related emission and nanosecond optical power limiting in CuS quantum dotsen_US
dc.typeArticleen_US
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