Please use this identifier to cite or link to this item: https://doi.org/10.1063/1.3177064
Title: Nonlinear optical switching behavior of Au nanocubes and nano-octahedra investigated by femtosecond Z -scan measurements
Authors: Lee, Y.H.
Yan, Y. 
Polavarapu, L. 
Xu, Q.-H. 
Issue Date: 2009
Citation: Lee, Y.H., Yan, Y., Polavarapu, L., Xu, Q.-H. (2009). Nonlinear optical switching behavior of Au nanocubes and nano-octahedra investigated by femtosecond Z -scan measurements. Applied Physics Letters 95 (2) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.3177064
Abstract: Two types of gold nanoparticles, nanocubes and nano-octahedra were prepared and their nonlinear absorption properties were investigated by using femtosecond open aperture Z -scan experiments. Both nanocubes and nano-octahedra exhibited a shift from saturable absorption (SA) to reverse saturable absorption (RSA) at higher excitation intensities. The SA behavior was ascribed to ground state plasmon band bleaching and RSA was ascribed to excited state absorption and two-photon absorption of these materials. The competition of different processes is responsible for the observed switching behavior. © 2009 American Institute of Physics.
Source Title: Applied Physics Letters
URI: http://scholarbank.nus.edu.sg/handle/10635/76642
ISSN: 00036951
DOI: 10.1063/1.3177064
Appears in Collections:Staff Publications

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

SCOPUSTM   
Citations

69
checked on Aug 17, 2018

WEB OF SCIENCETM
Citations

65
checked on Aug 8, 2018

Page view(s)

42
checked on Aug 3, 2018

Google ScholarTM

Check

Altmetric


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