Physical Chemistry Student Lecture Series
Ohio State University Chemistry Department

Special Seminars

Information about all seminars can be found on the main page.
Information about past special seminars can be found on the special seminars archive page.

The Seminar	The Seminar
Some Radiative and Non-Radiative Properties of Plasmonic Nanoparticles: From Plasmon Driven Motion to Plasmonic Coupling for Advanced Plasmonic Rulers	Computational Nanophotonics: Applications of Classical Electrodynamics to Nanoscience
Chris Tabor Mostafa A. El-Sayed Group Georgia Tech Department of Chemistry	Jeff McMahon George Schatz Group Northwestern University Department of Chemistry
4:00 pm, February 16th, 2008 2015 McPherson Chemical Lab Refreshments starting at 3:30 pm	4:00 pm, May 4th, 2008 2015 McPherson Chemical Lab Refreshments starting at 3:30 pm
Winter Quarter 2009	Spring Quarter 2009
Metallic nanoparticles have the amazing ability to localize radiation by confining it to the nanoscale in a localized surface plasmon resonance (LSPR). The frequency of radiation that is resonant with a nanoparticleÕs plasmon oscillation is dependent on several factors: 1) the particle material, 2) the size and shape of the particle, and 3) the dielectric environment of the particle. The dependence of the plasmon position on these factors can be used to develop advanced functional materials. I will discuss some of the phenomena and applications of metallic nanoparticles associated with localized surface plasmon resonance excitation such as light driven nanoparticle motion and nanometer plasmonic rulers that have the potential to accurately map biological systems and macromolecules.	In recent years, there has been increased interest in structures with features on the order of nanometers as experimental techniques for their fabrication have become possible. For metallic nanostructures, one of the main interests is in their novel interactions with light, which can (for the most part) be described using classical electrodynamics. In this talk, I will present results from recent applications of classical electrodynamics to optical phenomena in metal nanostructures, including coupled effects in the extraordinary optical transmission through infinite arrays of subwavelength holes in metal films, confining and controlling light on dielectric surfaces using optical corrals, and generating extremely large electric field enhancements using coupled nanowires.

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