Controlling linear and nonlinear optical properties associated with surface plasmon resonance effect of colloidal gold nanoparticles

Author

Alencar, M.A.R.C. ; Fonseca, E.J.S. ; Santos, C.E.A. ; Moraes, S.F.A. ; Gelesky, M.A. ; Meneghetti, M.R. ; Hickmann, J.M.

Author_Institution

Opt. & Mater. Group - OPTMA, Univ. Fed. de Alagoas, Maceio, Brazil

fYear

2009

fDate

14-19 June 2009

Firstpage

1

Lastpage

1

Abstract

In this work, we report on the successful use of myristic acid to modulate the SPR of AuNP dispersed in castor oil and the investigation of the third-order nonlinear optical response of the resulting colloidal systems.The colloids were prepared based on standard wet-chemical syntheses, employing aqueous solutions of HAuCl₄, as a gold source, KOH and castor oil. We observed that the colloids SPR frequency could be controlled adding myristic acid during the synthesis process as a tuning agent. Colloids with different filling factors (FF) were produced and characterized by TEM, UV-Vis spectroscopy, and atomic absorption spectrometry.

Keywords

gold; nanoparticles; nonlinear optics; organic compounds; potassium compounds; surface plasmon resonance; transmission electron microscopy; HAuCl₄; KOH; TEM; UV-Vis spectroscopy; atomic absorption spectrometry; castor oil; colloidal gold nanoparticles; different filling factors; gold source; myristic acid; nonlinear optical properties; surface plasmon resonance; wet chemical synthesis; Frequency synthesizers; Gold; Nanoparticles; Nonlinear optics; Optical control; Optical modulation; Petroleum; Plasmons; Resonance; Spectroscopy;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009. European Conference on

Conference_Location

Munich

Print_ISBN

978-1-4244-4079-5

Electronic_ISBN

978-1-4244-4080-1

Type

conf

DOI

10.1109/CLEOE-EQEC.2009.5196444

Filename

5196444