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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/8189
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dc.contributor.authorKumar, Manish-
dc.contributor.authorPerumbilavil, Sreekanth-
dc.contributor.authorVinayakumara, D. R.-
dc.contributor.authorGoel, Alok-
dc.contributor.authorPhilip, Reji-
dc.contributor.authorKumar, Sandeep-
dc.date.accessioned2023-12-27T09:02:47Z-
dc.date.available2023-12-27T09:02:47Z-
dc.date.issued2023-11-18-
dc.identifier.citationACS Omega, 2023, Vol. 8, p45961en_US
dc.identifier.issn2470-1343 (print)-
dc.identifier.issn2470-1343 (online)-
dc.identifier.urihttp://hdl.handle.net/2289/8189-
dc.descriptionOpen Accessen_US
dc.description.abstractThe search for efficient and transparent nonlinear optical (NLO) media has led to the investigation and development of alternative organic optical materials. In this context, a series of new hexylthiotruxene derivatives have been synthesized, and their linear and NLO properties are explored. These truxene derivatives show large NLO absorption due to their C3 symmetry, presence of large hyperpolarizability, and extended π-conjugation. Herein, we show that two-photon absorption and three-photon absorption processes are the main cause of nonlinear absorption in these materials under 5 ns and 100 fs excitations at 532 and 800 nm excitations, respectively. The nonlinear absorption coefficients have high values of 2 to 7.9 × 10–10 m/W in the nanosecond domain and 2.2 to 7.4 × 10–21 m3/W2 in the femtosecond domain. The corresponding nonlinear absorption cross-section (δ) values and the nonlinear susceptibilities were also calculated from the numerically obtained nonlinear absorption coefficient values. Tailored truxene derivative showed an excellent optical limiting threshold of 4.5 J/cm2 and is comparable to or better than most recently reported and benchmark optical limiting materials. Longer alkyl members of the series showed the largest nonlinear absorption in both excitation domains and could be a potential optical limiter.en_US
dc.language.isoenen_US
dc.publisherACS Publicationsen_US
dc.relation.urihttps://doi.org/10.1021/acsomega.3c06778en_US
dc.rights2023 The Author(s)en_US
dc.subjectAbsorptionen_US
dc.subjectLasersen_US
dc.subjectMaterialsen_US
dc.subjectNonlinear opticsen_US
dc.subjectReaction productsen_US
dc.titleNonlinear Optical Properties of Discotic Hexylthiotruxene Derivativesen_US
dc.typeArticleen_US
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