Optical epitaxial growth of gold nanoparticle arrays (Presentation Recording)

Ningfeng Huang; Luis J. Martinez; Eric Jaquay; Michelle L. Povinelli

doi:10.1117/12.2190670

5 October 2015 Optical epitaxial growth of gold nanoparticle arrays (Presentation Recording)

Ningfeng Huang, Luis J. Martinez, Eric Jaquay, Michelle L. Povinelli

Proceedings Volume 9548, Optical Trapping and Optical Micromanipulation XII; 954811 (2015) https://doi.org/10.1117/12.2190670
Event: SPIE Nanoscience + Engineering, 2015, San Diego, California, United States

Abstract

We demonstrate optical trapping of a periodic array of closely spaced gold nanoparticles. To achieve the experimental result, we considered competition between optical gradient forces and strong interparticle interactions. We achieve control of the gradient forces using a photonic-crystal template designed to create a periodic optical trapping potential. We modeled the interparticle interactions using a kinetic Monte Carlo approach. The results predict the formation of different particle superstructures (such as chains or filled-in arrays) depending on lattice constant and symmetry. Using the model prediction, we designed and demonstrated a template that allows trapping of a regular periodic array.

Conference Presentation

Citation Download Citation

Ningfeng Huang, Luis J. Martinez, Eric Jaquay, and Michelle L. Povinelli "Optical epitaxial growth of gold nanoparticle arrays (Presentation Recording)", Proc. SPIE 9548, Optical Trapping and Optical Micromanipulation XII, 954811 (5 October 2015); https://doi.org/10.1117/12.2190670

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