Projects per year
The three-dimensional morphological control of the individual metallic nanocrystals in a coupled structure imposes an electric field localization and enhancement in all three dimensions. We exploit the unique morphology of chemically synthesized nanotriangle monomers to form assembled dimers with a bowtie-like morphology in two orthogonal planes, effectively minimizing the volume of the interaction space to a point. The antenna has a longitudinal mode at 893 nm (1.39 eV), a 294 nm (0.68 eV) red shift compared to a monomer of equivalent size. This is indicative of extremely strong coupling because of the three-dimensional confinement of the electric field within the nanogap. By changing the geometry of the nanotriangle dimer, the longitudinal mode is tunable within a 220 nm (0.45 eV) range. The distribution of the electric field in the interparticle space transitions from a localized point for a bowtie to a more distributed line for an inverted bowtie.
Mulvaney, P., Ghiggino, K. P., Smith, T. A., Sader, J. E., Wong, W. W. H., Russo, S. P., Cole, J., Jasieniak, J., Funston, A., Bach, U., Cheng, Y., Lakhwani, G., Widmer-Cooper, A., McCamey, D., Schmidt, T., Gomez, D. E., Scholes, F., McCallum, R., Dicinoski, G., Du, C., Plenio, M. B., Tiang, J., Neaton, J., Lippitz, M. & Hao, X.
Monash University – Internal School Contribution, Monash University – Internal Faculty Contribution, Monash University – Internal Department Contribution, Monash University – Internal University Contribution
30/06/17 → 30/06/24
2/01/14 → 31/12/16
Office of the Vice-Provost (Research and Research Infrastructure)
Sean Langelier (Manager)Office of the Vice-Provost (Research and Research Infrastructure)