Nonlinear optical properties of metal and semiconductor nanoparticles

Aine M. Whelan; Sakina Benrezzak; Margaret E. Brennan; John M. Kelly; Werner J. Blau

doi:10.1117/12.464037

27 August 2003 Nonlinear optical properties of metal and semiconductor nanoparticles

Aine M. Whelan, Sakina Benrezzak, Margaret E. Brennan, John M. Kelly, Werner J. Blau

Proceedings Volume 4876, Opto-Ireland 2002: Optics and Photonics Technologies and Applications; (2003) https://doi.org/10.1117/12.464037
Event: OPTO Ireland, 2002, Galway, Ireland

Abstract

The synthesis of metal (Au,Ag) and semiconductor (PbS) nanoparticles of specific morphology and shape is reported. The shape of PbS nanoparticles has been varied from spherical to oval to cubic, by use of poly(vinyl alcohol) (PVA), DNA and ethylene glycol as stabilisers respectively. For the first time, a seeding method has been used to successfully prepare PVA stabilised gold and silver nanoparticles. Characterisation of the third order optical nonlinearity of the nanoparticles has been carried out using the Z-scan technique with values of Im ÷ (3) as large as 10-10. Modulation of the magnitude of the nonlinear optical response with morphology in the case of the PbS nanoparticles is presented.

Citation Download Citation

Aine M. Whelan, Sakina Benrezzak, Margaret E. Brennan, John M. Kelly, and Werner J. Blau "Nonlinear optical properties of metal and semiconductor nanoparticles", Proc. SPIE 4876, Opto-Ireland 2002: Optics and Photonics Technologies and Applications, (27 August 2003); https://doi.org/10.1117/12.464037

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