Title
Optical Saturable Absorption In Gold Nanoparticles
Keywords
Metal nanoparticles; Nonlinear absorption; Plasmonics; Saturable absorption; Surface plasmon resonance
Abstract
In this work, we present the experimental study of the nonlinear absorption of gold nanospheres and nanorods in aqueous suspension, using picosecond white-light supercontinuum open-aperture Z-scan. We demonstrate a saturable absorption effect in all particle suspensions at low-pulse energy. In the high-pulse energy regime, the apparent reverse-saturable absorption, observed in gold nanorods, was determined to be induced by photodegradation. Using the Lorentzian deconvolution method for the absorption spectra, we explain the variations on nonlinear optical effects and prove that saturable absorption only occurs within the plasmonic bands. © 2008 Springer Science+Business Media, LLC.
Publication Date
12-1-2008
Publication Title
Plasmonics
Volume
3
Issue
4
Number of Pages
171-176
Document Type
Article
Personal Identifier
scopus
DOI Link
https://doi.org/10.1007/s11468-008-9071-1
Copyright Status
Unknown
Socpus ID
56749164892 (Scopus)
Source API URL
https://api.elsevier.com/content/abstract/scopus_id/56749164892
STARS Citation
De Boni, Leonardo; Wood, Erin Leigh; Toro, Carlos; and Hernandez, Florencio E., "Optical Saturable Absorption In Gold Nanoparticles" (2008). Scopus Export 2000s. 9316.
https://stars.library.ucf.edu/scopus2000/9316