Second harmonic generation from centrosymmetric arrays of gold nanoparticles

Matthew D. McMahon; Christopher T. Bowie; René Lopez; Leonard C. Feldman; Richard F. Haglund Jr.

doi:10.1117/12.646974

1 March 2006 Second harmonic generation from centrosymmetric arrays of gold nanoparticles

Matthew D. McMahon, Christopher T. Bowie, René Lopez, Leonard C. Feldman, Richard F. Haglund Jr.

Proceedings Volume 6106, Photon Processing in Microelectronics and Photonics V; 61061N (2006) https://doi.org/10.1117/12.646974
Event: Lasers and Applications in Science and Engineering, 2006, San Jose, California, United States

Abstract

We present experimental results from second-harmonic generation studies of lithographically-prepared arrays of centrosymmetric gold nanorods, extending a previous treatment. The arrays serve as diffraction gratings, allowing control over the emission directions. The intrinsic radiation patterns from the nanoparticles are superimposed on the diffraction pattern, creating a unique angular distribution of second-harmonic light. The surface plasmon resonance mode of the particles is tuned to match the wavelength of the ultrafast Ti:sapphire excitation laser, dramatically enhancing the second-harmonic intensity but also increasing photodesorption effects. The details of the diffracted peak intensities depend sensitively on the geometry of the system and require a complex normalization of the data.

Citation Download Citation

Matthew D. McMahon, Christopher T. Bowie, René Lopez, Leonard C. Feldman, and Richard F. Haglund Jr. "Second harmonic generation from centrosymmetric arrays of gold nanoparticles", Proc. SPIE 6106, Photon Processing in Microelectronics and Photonics V, 61061N (1 March 2006); https://doi.org/10.1117/12.646974

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