Author Affiliations
Abstract
Nonlinear absorption of monolayer graphene suspension is studied in the wavelength of 800 nm using Z-scan method with 50-fs pulses. Nonlinear absorption property of graphene suspension at different excitation intensities is compared. Large reverse saturable absorptions are found and believed to arise from twophoton absorption.
190.4400 Nonlinear optics, materials 190.4180 Multiphoton processes 190.7110 Ultrafast nonlinear optics Chinese Optics Letters
2012, 10(7): 071901
