Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.proeng.2012.03.085
Title: Femtosecond carrier dynamics and saturable absorption in functionalized epitaxial graphene
Authors: Xiao, S.
Hoh, H.Y.
Loh, K.P. 
Keywords: Carrier dynamics
Epitaxial grapheme
Saturable absorption
Issue Date: 2012
Citation: Xiao, S., Hoh, H.Y., Loh, K.P. (2012). Femtosecond carrier dynamics and saturable absorption in functionalized epitaxial graphene. Procedia Engineering 36 : 583-588. ScholarBank@NUS Repository. https://doi.org/10.1016/j.proeng.2012.03.085
Abstract: We have measured carrier relaxation times and nonlinear optical properties in three functionalized epitaxial graphene layers grown on SiC wafers by using ultrafast optical pump-probe spectroscopy and open aperture z-scan at 780 nm. The results demonstrate that after different functionalization, the ratios of the slower relaxation in the range of 3.1-4.6 ps (related to carrier-phonon intraband and interband scattering) increase about 2-6 times compared to original graphene. These changes of relaxation obviously improved the nonlinear optical properties, making functionalized epitaxial graphene can be used as a tuneable saturable absorber. © 2012 Published by Elsevier Ltd.
Source Title: Procedia Engineering
URI: http://scholarbank.nus.edu.sg/handle/10635/95461
ISSN: 18777058
DOI: 10.1016/j.proeng.2012.03.085
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

Page view(s)

29
checked on Oct 5, 2018

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.