Transient thermal effect, nonlinear refraction and nonlinear absorption properties of graphene oxide sheets in dispersion

The nonlinear refraction (NLR) properties of graphene oxide (GO) in N, N-Dimethylformamide (DMF) was studied in nanosecond, picosecond and femtosecond time regimes by Z-scan technique. Results show that the dispersion of GO in DMF exhibits negative NLR properties in nanosecond time regime, which is...

Full description

Saved in:
Bibliographic Details
Published in:Optics express 2013-03, Vol.21 (6), p.7511-7520
Main Authors: Zhang, Xiao-Liang, Liu, Zhi-Bo, Li, Xiao-Chun, Ma, Qiang, Chen, Xu-Dong, Tian, Jian-Guo, Xu, Yan-Fei, Chen, Yong-Sheng
Format: Article
Language:English
Subjects:
Absorption
Graphite - chemistry
Graphite - radiation effects
Light
Materials Testing
Nonlinear Dynamics
Oxides - chemistry
Oxides - radiation effects
Refractometry - methods
Scattering, Radiation
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The nonlinear refraction (NLR) properties of graphene oxide (GO) in N, N-Dimethylformamide (DMF) was studied in nanosecond, picosecond and femtosecond time regimes by Z-scan technique. Results show that the dispersion of GO in DMF exhibits negative NLR properties in nanosecond time regime, which is mainly attributed to transient thermal effect in the dispersion. The dispersion also exhibits negative NLR in picosecond and femtosecond time regimes, which are arising from sp(2)- hybridized carbon domains and sp(3)- hybridized matrix in GO sheets. To illustrate the relations between NLR and nonlinear absorption (NLA), NLA properties of the dispersion were also studied in nanosecond, picosecond and femtosecond time regimes.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.21.007511