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Proceedings Paper

Comparison of third-order nonlinear optical properties of colloidal gold nanoshells and nanorods
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Paper Abstract

A detailed comparison of third-order nonlinear optical properties of colloidal gold nanoshells (NSs) and gold nanorods (NRs) in water solutions has been carried out with the open- and closed-aperture Z-scan measurements, performed with femtosecond laser pulses over a broad range of wavelengths. Absorption saturation was found to be a dominant effect for all the studied nanoparticles, however two-photon absorption properties are also detected, especially at the shortest wavelengths studied. The value of the merit factor σ2/M (two-photon absorption cross section scaled by the molecular weight) for the NRs (10nm × 35 nm) at 530 nm is 7.5 (GM·mol/g), while for the NSs is 1.9 (GM·mol/g) at the same wavelength.

Paper Details

Date Published: 10 September 2014
PDF: 6 pages
Proc. SPIE 9163, Plasmonics: Metallic Nanostructures and Their Optical Properties XII, 91630V (10 September 2014); doi: 10.1117/12.2059632
Show Author Affiliations
Marta Gordel, Wroclaw Univ. of Technology (Poland)
Lab. de biologie et de pharmacologie appliquée, CNRS, Ecole Normale Supérieure de Cachan (France)
Joanna Olesiak-Banska, Wroclaw Univ. of Technology (Poland)
Radoslaw Kolkowski, Wroclaw Univ. of Technology (Poland)
Lab. de photonique quantique et moléculaire, Ecole Normale Supérieure de Cachan (France)
Katarzyna Matczyszyn, Wroclaw Univ. of Technology (Poland)
Malcolm Buckle, Lab. de biologie et de pharmacologie appliquée, CNRS, Ecole Normale Supérieure de Cachan (France)
Marek Samoc, Wroclaw Univ. of Technology (Poland)


Published in SPIE Proceedings Vol. 9163:
Plasmonics: Metallic Nanostructures and Their Optical Properties XII
Allan D. Boardman, Editor(s)

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