Houston, TX 77005
3:00 p.m. Monday, April 1, 2013
On Campus | Alumni
Interest in nanotechnology is driven by unprecedented means to tailor physical behavior via structure and composition. Unlike bulk components, minute changes in size and shape affect the optical and electronic properties of nanoparticles. Characterization of such structure-function relationships and better understanding of structure control mechanisms are crucial to the development of novel applications such as plasmonic sensors and devices. The first part of this talk will cover recent experimental advances in correlated single particle optical and structural characterization, which provide new insight on the effects of size and shape, as well as their interrelation, on plasmonic properties such as resonance frequency, field enhancement, plasmon decay, and refractive index sensitivity.1-4 The second part will discuss new analytical shape models, focusing on kinetic growth of plasmonically relevant shapes. (1) Ringe, E.; Langille, M. R.; Sohn, K.; Zhang, J.; Huang, J.; Mirkin, C. A.; Van Duyne, R. P.; Marks, L. D. J. Phys. Chem. Lett. 2012, 3, 1479. (2) Grubisic, A.*; Ringe, E.*; Cobley, C.; Xia, Y.; Marks, L. D.; Van Duyne, R. P.; Nesbitt, D. J. Nano Lett. 2012, 12, 4823. (3) Ringe, E.; Zhang, J.; Langille, M. R.; Mirkin, C. A.; Marks, L. D.; Duyne, R. P. V. Nanotechnology 2012, 23, 444005. (4) Ringe, E.; McMahon, J. M.; Sohn, K.; Cobley, C. M.; Xia, Y.; Huang, J.; Schatz, G. C.; Marks, L. D.; Van Duyne, R. P. J. Phys. Chem. C 2010, 114, 12511.