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Transient differential transmission spectra for the graphene suspensions as a function of probe delay in the degenerate pump-probe experiment at 790 nm (1.57 eV): (a) G-DMF, (b) G-THF, (c) , and (d) GO. The solid lines are fits to bi-exponentially decaying functions convoluted with the cross correlation of the pump and probe pulses.
Open aperture Z-scan data of the graphene suspensions: (a) G-DMF, (b) G-THF, (c) , and (d) GO. The solid lines are the theoretical fits.
Parameters obtained from the transient differential transmission spectra of the graphene suspensions.
Optical constants of the graphene suspension measured from OA Z-scan experiments. is the linear absorption coefficient measured separately.
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