Femto-, pico- and nano-second refractive nonlinearities exhibited by Au nanoparticles

C. Torres-Torres; L. Tamayo Rivera; R. Rangel-Rojo; J. A. Reyes Esqueda; J. C. Cheang-Wong; L. Rodríguez-Fernández; A. Crespo-Sosa; A. Oliver

doi:10.1117/12.903259

25 October 2011 Femto-, pico- and nano-second refractive nonlinearities exhibited by Au nanoparticles

C. Torres-Torres, L. Tamayo Rivera, R. Rangel-Rojo, J. A. Reyes Esqueda, J. C. Cheang-Wong, L. Rodríguez-Fernández, A. Crespo-Sosa, A. Oliver

Author Affiliations +

Proceedings Volume 8011, 22nd Congress of the International Commission for Optics: Light for the Development of the World; 80113S (2011) https://doi.org/10.1117/12.903259
Event: International Commission for Optics (ICO 22), 2011, Puebla, Mexico

Abstract

Gold nanoparticles (AuNPs) have proven to be powerful tools in various ultrafast photonic, plasmonic and nanomedical applications. Numerous advances in the use of AuNPs include research on their interesting and remarkably fast changes influenced by Surface Plasmon Resonance excitations. Within this work we report theoretical and experimental results for the physical mechanisms that originate a nonlinearity of refractive index during different temporal regimes for a high-purity silica matrix containing Au nanoparticles. The nanocomposites were prepared by ion implantation into a silica matrix, followed by a thermal annealing. We used an optical Kerr gate with 80 fs pulses at 830 nm and a vectorial self-diffraction technique with 26 ps and with 7 ns at 532 nm in order to investigate the magnitude and response time of the resulting third order nonlinearity. In all cases we were able to measure and identify an electronic polarization responsible for the nonlinear refraction. For the pico- and nano-second near resonance irradiations, a contribution of a thermal effect could be stimulated and then the optical Kerr response enhanced. The presence of saturable absorption for the pico- and nano-second experiments was measured. We observe that our samples behave like waveguides in the near infrared spectrum and we estimate that they posses potential applications for all-optical switching devices.

Citation Download Citation

C. Torres-Torres, L. Tamayo Rivera, R. Rangel-Rojo, J. A. Reyes Esqueda, J. C. Cheang-Wong, L. Rodríguez-Fernández, A. Crespo-Sosa, and A. Oliver "Femto-, pico- and nano-second refractive nonlinearities exhibited by Au nanoparticles", Proc. SPIE 8011, 22nd Congress of the International Commission for Optics: Light for the Development of the World, 80113S (25 October 2011); https://doi.org/10.1117/12.903259

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
6 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Nonlinear optics

Picosecond phenomena

Nanoparticles

Polarization

Absorption

Gold

Nanocomposites

Show All Keywords

Keywords/Phrases

Search In:

Publication Years