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physics.optics2022★ 1 cited
Ultrafast laser pulse characterization by THG d-scan using optically enhanced graphene coatings
Tiago Gomes, Miguel Canhota, Bohdan Kulyk +6
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 re…
physics.optics2021★ 10 cited
Temporal characterization of broadband femtosecond laser pulses by third-harmonic dispersion scan with ptychographic retrieval
Tiago Gomes, Miguel Canhota, Helder Crespo
We present a new variant of dispersion scan (d-scan) based on surface third-harmonic generation (STHG) and a ptychographic algorithm taylored for full retrieval (amplitude and phas…