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As of September 1, Professor Smith has joined the faculty in Electrical and Computer Engineering at Duke University! Professor Smith remains as an Associate Adjunct Professor in the Physics Department at UCSD, and also has a Visiting Professor position at Imperial College (London).

The site for negative index metamaterials is now being maintained at a Duke website (http://www.ee.duke.edu/~drsmith), including information for those seeking student and staff researcher positions.

 
Electromagnetic metamaterials
Metamaterials
Electromagnetic metamaterials are artificially structured composites that can be engineered to have desired electromagnetic properties, while having other advantageous material properties. In addition to their potential in practical applications and devices, metamaterials can offer unique and previously unexplored material properties.
Negative Index Metamaterials
Our group demonstrated and has since studied wave propagation phenomena in negative index metamaterials. These materials, hypothesized by Victor Veselago in 1968, have remarkable properties that may lead to new physics and new electromagnetic devices. More information can be found on the negative refraction home page.

Plasmon Resonant Nanoparticles Biolabeling with Nanoparticles

The conduction electrons of a metal interact with the electromagnetic field to form a surface plasmon. Surface plasmons are remarkable, as they can localize electromagnetic field to nano-sized regions. In subwavelength metal particles, a plasmon resonance can yield tremendous field enhancement.

Plasmon resonant nanoparticles scatter light with tremendous efficiency. They can thus be utilized as ultrabright nanosized labels for biological applications, replacing other labeling methods such as fluorescence.

Left: Plasmon resonant particles as viewed in a darkfield microscope. Top: Plasmon resonant particles used to label a drosophila chromosome.
Photonic Crystals for Accelerators
Photonic Crystals
Photonic crystals are periodic arrangements of scattering elements that give rise to the optical analogy of electronic band structure. We have applied photonic crystals to develop novel accelerator cavities. Among the advantages of photonic crystal accelerator cavities are natural higher order mode suppression and ease of fabrication.
A note on the new website

This web site is currently in development! Many of the links are either not working, or link to out dated web pages. If you have any comments on the material contained so far, or want to have anything posted, please let me know.

 
 
December 15, 2004  

Professor David R. Smith
drs@physics.ucsd.edu
Department of Physics, 0319
University of California, San Diego
9500 Gilman Drive
La Jolla, CA 92093-0319