Two-photon absorption of monolayer graphene suspensions in femtosecond regime

• 来源期刊: 中国光学快报（英文版）
• 年，卷（期）: 2012,（7）
• 页码范围: 78-80
• 页数: 3页
• 语种: 英文
• DOI: 10.3788/COL201210.071901

摘要

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.