Journal
OPTIK
Volume 156, Issue -, Pages 104-111Publisher
ELSEVIER GMBH
DOI: 10.1016/j.ijleo.2017.10.176
Keywords
Reduced graphene oxide; Thin film; Optical nonlinearity
Categories
Ask authors/readers for more resources
In this study, a simple route was employed to prepare reduced graphene oxide (rGO) thin films using drop casting technique. Different analytical methods such as XRD, SEM, FTIR, and Raman spectroscopy were used to evaluate the structural characteristics and optical properties of synthesized samples. Optical nonlinearity of as-prepared rGO layers were measured by z-scan technique under CW laser radiation at low intensity of light. Experimental results showed that rGO thin layers have nonlinear refractive indexes (n(2) approximate to 10(-4) cm(2) W-1) depend on the film thickness that has not been reported before. The obtained results of nonlinear optical measurements demonstrate that the optical nonlinearity of thin reduced graphene oxide film is affected by film thickness and its quality. The experimental results confirm that the change in absorption of thin rGO films is due to state filling effects and the optical nonlinearity is in fact proportional to the carrier density. (C) 2017 Elsevier GmbH. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available