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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/7789
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dc.contributor.authorUndavalli, Gopi-
dc.contributor.authorJoseph, Mary-
dc.contributor.authorArjun, K. K-
dc.contributor.authorPhilip, Reji-
dc.contributor.authorAnand, Benoy-
dc.contributor.authorRao, G. Nageswara-
dc.date.accessioned2021-06-29T08:29:13Z-
dc.date.available2021-06-29T08:29:13Z-
dc.date.issued2021-05-
dc.identifier.citationOptical Materials, 2021, Vol.115, p111024en_US
dc.identifier.issn0925-3467-
dc.identifier.urihttp://hdl.handle.net/2289/7789-
dc.descriptionRestricted Access.en_US
dc.description.abstractDevelopment of tunable photonic devices having molecular dimensions is an active research area in nonlinear optics which continues to evolve and impact many technologies. Here, we demonstrate the tailoring of nonlinear optical properties of nitrochalcone derivatives by engineering the donor-acceptor configurations on either end of the molecules, to control the intramolecular charge transfer process. The central π-bridge in chalcones provides delocalized electrons which lead to the nonlinear polarizability observed in these molecules. Optical nonlinearity is studied by means of second harmonic generation (SHG) and open aperture Z-scan measurements. Samples show optical limiting behaviour in the nanosecond excitation regime due to excited state absorption (ESA) and two-photon absorption (2PA) phenomena. Our study highlights the importance of structure-property correlations in molecular designs.en_US
dc.language.isoenen_US
dc.publisherElsevier B.V.en_US
dc.relation.urihttps://ui.adsabs.harvard.edu/abs/2021OptMa.11511024U/abstracten_US
dc.relation.urihttps://doi.org/10.1016/j.optmat.2021.111024en_US
dc.rights2021 Elsevier B.V.en_US
dc.subjectNonlinear opticsen_US
dc.subjectOrganic moleculesen_US
dc.subjectOptical limitingen_US
dc.subjectLasersen_US
dc.titleTuning the nonlinear optical properties by engineering donor-acceptor configurations in nitrochalone derivativesen_US
dc.typeArticleen_US
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