David R. Smith, James B. Duke Distinguished Professor

 


David R. Smith

Dr. David R. Smith is currently the James B. Duke Distinguished Professor of Electrical and Computer Engineering Department at Duke University and Director of the Center for Metamaterial and Integrated Plasmonics. He also holds the positions of Adjunct Associate Professor in the Physics Department at the University of California, San Diego, and Visiting Professor of Physics at Imperial College, London. Dr. Smith received his Ph.D. in 1994 in Physics from the University of California, San Diego (UCSD). Dr. Smith's research interests include the theory, simulation and characterization of unique electromagnetic structures, including photonic crystals and metamaterials.

Please note the publication and other information on this page is not frequently updated. See Prof. Smith's personal website at http://people.ee.duke.edu/~drsmith for more recent updates!

Smith is best known for his theoretical and experimental work on electromagnetic metamaterials. Metamaterials are artificially structured materials, whose electromagnetic properties can be tailored and tuned in ways not easily accomplished with conventional materials. Smith has been at the forefront in the development of numerical methods to design and characterize metamaterials, and has also provided many of the key experiments that have helped to illustrate the potential that metamaterials offer.

Smith and his colleagues at UCSD demonstrated the first left-handed (or negative index) metamaterial at microwave frequencies in 2000--a material that had been predicted theoretically more than thirty years prior by Russian physicist Victor Veselago. No naturally occurring material or compound with a negative index-of-refraction had ever been reported until this experiment. In 2001, Smith and colleagues followed up with a second experiment confirming one of Veselago's key conjectures: the 'reversal' of Snell's law. These two papers--the first published in Physical Review Letters and the second in Science--generated enormous interest throughout the community in the possibility of metamaterials to extend and augment the properties of conventional materials. Both papers have now been cited more than 3,000 times each.

Since those first metamaterial experiments, Smith has continued to study the fundamentals and potential applications of negative index media and metamaterials. In 2004, Smith began studying the potential of metamaterials as a means to produce novel gradient index media. By varying the index-of-refraction throughout a material, an entire class of optical elements (such as lenses) can be formed. Smith showed that metamaterials could access a much larger range of design space, since both the magnetic and the electric properties could be graded independently. Smith and colleagues demonstrated several versions of gradient index optics, an activity that continues in his lab today.

The introduction of controlled spatial gradients in the electromagnetic properties of a metamaterial flows naturally into the broad concept of transformation optics - a new electromagnetic design approach proposed by Sir John Pendry in 2006. To illustrate of the novelty of this design approach, Pendry, Schurig and Smith suggested in 2006 that an 'invisibility cloak' could be realized by a metamaterial implementation of a transformation optical design. Later that same year, Smith's group at Duke University reported the demonstration of a transformation optical designed 'invisibility cloak' at microwave frequencies. The concept of transformation optics has since attracted the attention of the scientific community, and is now a rapidly emerging sub-discipline in the field. Smith's work on transformation optics has been featured in nearly every major newspaper, including a cover story in USA Today, The New York Times, The Chicago Tribune, The Wall Street Journal, The Washington Post and many more. Smith and his work on cloaking have also been featured on television news programs inlcuding The Today Show, Countdown with Keith Olbermann, Fox News, CNN and MSNBC. Smith's work has also been highlighted in documentary programs on The History Channel, The Discovery Channel, The Science Channel, the BBC and others.

Contact Info:
Office Location:  130 Hudson Hall
Office Phone:  +1 919 660 5376
Email Address:   send me a message
Web Page: http://www.ee.duke.edu/~drsmith

Education:

PhD, University of California, San Diego, 1994
BS, University of California, San Diego, 1988
Specialties:

Photonics
Metamaterials
Electromagnetics
Plasmonics
Awards, Honors, and Distinctions

Descartes Prize for Research, European Union, 2005
Top 100 Science Accomplishments for 2006, Discover Magazine (Cloaking)
Top 50 Researchers, Scientific American, 2006
Top Ten Breakthroughs for 2003, Science Magazine (Negative Index Materials)
Top Ten Breakthroughs for 2006, Science Magazine (Cloaking)
Recent Publications   (More Publications)

  1. H. T. Chen and S. Palit and T. Tyler and C. M. Bingham and J. M. O. Zide and J. F. O'hara and D. R. Smith and A. C. Gossard and R. D. Averitt and W. J. Padilla and N. M. Jokerst and A. J. Taylor, Hybrid metamaterials enable fast electrical modulation of freely propagating terahertz waves, Applied Physics Letters, vol. 93 no. 9 (September, 2008)  [abs].
  2. J. J. Mock and R. T. Hill and A. Degiron and S. Zauscher and A. Chilkoti and D. R. Smith, Distance-dependent plasmon resonant coupling between a gold nanoparticle and gold film, Nano Letters, vol. 8 no. 8 (August, 2008), pp. 2245 -- 2252  [abs].
  3. D. S. Sebba and J. J. Mock and D. R. Smith and T. H. Labean and A. A. Lazarides, Reconfigurable core-satellite nanoassemblies as molecularly-driven plasmonic switches, Nano Letters, vol. 8 no. 7 (July, 2008), pp. 1803 -- 1808  [abs].
  4. M. Rahm and D. A. Roberts and J. B. Pendry and D. R. Smith, Transformation-optical design of adaptive beam bends and beam expanders, Optics Express, vol. 16 no. 15 (July, 2008), pp. 11555 -- 11567  [abs].
  5. T. Driscoll and S. Palit and M. M. Qazilbash and M. Brehm and F. Keilmann and B. G. Chae and S. J. Yun and H. T. Kim and S. Y. Cho and N. M. Jokerst and D. R. Smith and D. N. Basov, Dynamic tuning of an infrared hybrid-metamaterial resonance using vanadium dioxide, Applied Physics Letters, vol. 93 no. 2 (July, 2008)  [abs].
Duties:

David Smith's research interests include photonic crystals, metamaterials and negative index media, plasmon nanophotonics, and self-monitoring composites.