Please use this identifier to cite or link to this item:
|Title:||Surface plasmon enhanced third-order nonlinear optical effects in Ag-Fe3O4 nanocomposites|
|Citation:||Mamidala, V., Xing, G., Ji, W. (2010-12-30). Surface plasmon enhanced third-order nonlinear optical effects in Ag-Fe3O4 nanocomposites. Journal of Physical Chemistry C 114 (51) : 22466-22471. ScholarBank@NUS Repository. https://doi.org/10.1021/jp1080912|
|Abstract:||We report an approach to enhance the third-order nonlinear optical properties of a nanocrystal through the attachment of another metallic nanoparticle. Both two-photon absorption (TPA) cross section and nonlinear refractive (NR) cross section of a Fe3O4 nanocube with and without the attachment of an Ag nanoparticle are characterized by using the Z-scan technique. As compared to pristine Fe3O4 nanocube, the TPA and NR cross section of Ag-particle-attached Fe3O4 nanocube is increased by several folds at light frequencies far below the surface plasmon resonance of Ag particle, with precise values depending on the size of the Ag particle. These enhanced values are in agreement with the theoretically calculated enhancement by discrete dipole approximation modeling, which reveals that the local electric field induced by the metal nanoparticle should play an essential role in the enhancement. © 2010 American Chemical Society.|
|Source Title:||Journal of Physical Chemistry C|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Jul 13, 2018
WEB OF SCIENCETM
checked on Jun 12, 2018
checked on Jun 29, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.