Optical limiting applications of resonating plasmonic Au nanoparticles in a dielectric glass medium

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dc.contributor.authorKumar, Promod
dc.contributor.authorChandra Mathpal, Mohan
dc.contributor.authorJagannath, Gangareddy
dc.contributor.authorPrakash, Jai
dc.contributor.authorMaze, Jero-R
dc.contributor.authorRoos, W. D.
dc.contributor.authorSwart, H. C.
dc.date.accessioned2025-01-20T22:20:29Z
dc.date.available2025-01-20T22:20:29Z
dc.date.issued2021
dc.description.abstractPlasmonic nanostructures exhibiting high optical nonlinearities are widely used in the rapidly growing modern nanotechnology of nonlinear optics including biomedical applications due to their tunable plasmonic behavior. In this work, we investigate the nonlinear optical properties of uniformly distributed Au nanoparticles (NPs) embedded in pre-synthesized sodium-zinc borate glass by the well-known ion-exchange technique for optical limiting (OL) applications. Various techniques such as optical absorption spectroscopy, x-ray photoelectron spectroscopy, Transmission Electron Microscope (TEM), Photoluminescence, Time of Flight secondary mass spectroscopy and the Z scan technique were used for the characterization of these NPs. TEM confirmed spherically shaped Au NPs with varying sizes of up to 16 nm, in agreement with optical absorption spectroscopy. Nonlinear optical (NLO) properties of these Au NPs were investigated by using an open as well as close aperture Z scan technique which exhibited enhanced optical nonlinearities. The two-photon absorption (2PA) coefficients demonstrated an increasing trend while the OL threshold values demonstrated a decreasing trend as a function of heat treatment. The improved 2PA coefficients and decreased OL threshold values endorsed the Au NPs containing glasses as contending materials for the fabrication of promising optical limiters for the protection of eyes and other sensitive instruments from laser induced damages.
dc.fuente.origenWOS
dc.identifier.doi10.1088/1361-6528/abfee6
dc.identifier.eissn1361-6528
dc.identifier.issn0957-4484
dc.identifier.urihttps://doi.org/10.1088/1361-6528/abfee6
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/94625
dc.identifier.wosidWOS:000657922200001
dc.issue.numero34
dc.language.isoen
dc.revistaNanotechnology
dc.rightsacceso restringido
dc.subjectsurface plasmon resonance
dc.subjection exchange
dc.subjectnonlinear optical
dc.subjectXPS
dc.subjectToF SIMS
dc.subject.ods03 Good Health and Well-being
dc.subject.odspa03 Salud y bienestar
dc.titleOptical limiting applications of resonating plasmonic Au nanoparticles in a dielectric glass medium
dc.typeartículo
dc.volumen32
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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