Optical limiting of laser radiation and light quenching in colloidal solutions of CdSe/ZnS semiconductor quantum dots and hybrid systems View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2015-07

AUTHORS

V. V. Danilov, A. S. Panfutova, V. B. Shilov, I. M. Belousova, G. M. Ermolaeva, A. I. Khrebtov, D. A. Videnichev

ABSTRACT

The photodynamics of power optical limiting is studied in colloidal solutions of quantum dots by exiting the system in the absorption band with 0.4-ns 532-nm pulses. Based on a parallel analysis of the dependence of the nonlinear transmission and luminescence decay kinetics of the investigated solutions, the conclusion is drawn that the main mechanism of the optical limiting of nanosecond laser radiation pulses is light quenching of the so-called dark states in quantum dots. The efficiency of limiting is determined by the dynamics of the population of these states. It is shown that CdSe/ZnS QDs–C60 hybrid system has the same efficiency in both the single-pulse and 10-Hz reptation rate modes. More... »

PAGES

561-564

Identifiers

URI

http://scigraph.springernature.com/pub.10.1134/s199079311504017x

DOI

http://dx.doi.org/10.1134/s199079311504017x

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1028846186


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