Ultrafast laser pulse characterization by THG d-scan using optically enhanced graphene coatings

Alexandre Carvalho; Ant\'onio Jos\'e Fernandes; Bohdan Kulyk; Bruno Jarrais; Cristina Freire; Florinda Costa; Helder Crespo; Miguel Canhota; Tiago Gomes

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Ultrafast laser pulse characterization by THG d-scan using optically enhanced graphene coatings

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arxiv 2206.01676 v1 pith:PDPGJGL7 submitted 2022-06-03 physics.optics cond-mat.mtrl-sci

Tiago Gomes , Miguel Canhota , Bohdan Kulyk , Alexandre Carvalho , Bruno Jarrais , António José Fernandes , Cristina Freire , Florinda Costa

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Helder Crespo

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classification physics.opticscond-mat.mtrl-sci

keywords graphenefunctionalizedlasersamplesableacidagreementcharacterization

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We have successfully functionalized 5 layers of TCVD-grown graphene by photoassisted transfer hydrogenation reaction with formic acid, in order to increase its nonlinear optical response and laser-induced damage resilience. Using the functionalized graphene samples, we were able to fully characterize sub-10 fs ultrashort laser pulses using THG dispersion-scan, with results that are in excellent agreement with the ones obtained with pristine graphene samples.

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