David R. Smith
James B. Duke Distinguished Professor of Electrical and Computer Engineering
Professor of Electrical and Computer Engineering
Director of the Center for Metamaterials and Integrated Plasmonics
Professor of Physics (Secondary)
Faculty Network Member of The Energy Initiative
Dr. David R. Smith is currently the James B. Duke Professor of Electrical and Computer Engineering Department at Duke University. He is also Director of the Center for Metamaterials and Integrated Plasmonics at Duke and 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.
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.
Please also see Prof. Smith's personal website at http://people.ee.duke.edu/~drsmith for the most frequent updates.
Pozo, S. D., et al. “A Novel RF Excited Plasma Cathode Electron Beam Gun Design.” Ieee Transactions on Electron Devices, vol. 61, no. 6, June 2014, pp. 1890–94. Scopus, doi:10.1109/TED.2014.2299339. Full Text
Degiron, A., and D. R. Smith. “One-way glass for microwaves using nonreciprocal metamaterials.” Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics, vol. 89, no. 5, May 2014, p. 053203. Epmc, doi:10.1103/physreve.89.053203. Full Text
Adey, D., et al. “Light sterile neutrino sensitivity at the nuSTORM facility.” Physical Review D Particles, Fields, Gravitation and Cosmology, vol. 89, no. 7, Apr. 2014. Scopus, doi:10.1103/PhysRevD.89.071301. Full Text
Ciracì, C., et al. “Film-coupled nanoparticles by atomic layer deposition: Comparison with organic spacing layers.” Applied Physics Letters, vol. 104, no. 2, Jan. 2014. Scopus, doi:10.1063/1.4861849. Full Text
Lipworth, Guy, et al. “Magnetic metamaterial superlens for increased range wireless power transfer.” Scientific Reports, vol. 4, Jan. 2014, p. 3642. Epmc, doi:10.1038/srep03642. Full Text Open Access Copy
Watts, C. M., et al. “Coded and compressive THz imaging with metamaterials.” Proceedings of Spie the International Society for Optical Engineering, vol. 8985, Jan. 2014. Scopus, doi:10.1117/12.2058082. Full Text
Watts, C. M., et al. “Terahertz compressive imaging with metamaterial spatial light modulators.” Nature Photonics, vol. 8, no. 8, Jan. 2014, pp. 605–09. Scopus, doi:10.1038/nphoton.2014.139. Full Text
Machado, M., et al. “Experimental improvement of birefringence and response time in Liquid Crystals using surface preparation of polyimide at 20GHz.” Ieee Mtt S International Microwave Symposium Digest, Jan. 2014. Scopus, doi:10.1109/MWSYM.2014.6848609. Full Text
Akselrod, G. M., et al. “Probing the mechanisms of large Purcell enhancement in plasmonic nanoantennas.” Nature Photonics, vol. 8, no. 11, Jan. 2014, pp. 835–40. Scopus, doi:10.1038/nphoton.2014.228. Full Text
Ebadi, S., et al. “Wideband coaxial to substrate-integrated waveguide transition in a multilayer reconfigurable antenna configuration.” Ieee Antennas and Propagation Society, Ap S International Symposium (Digest), Jan. 2014, pp. 454–55. Scopus, doi:10.1109/APS.2014.6904558. Full Text
Maniam, J., et al. “Microwave holographic imaging technique for tumour detection.” Ifmbe Proceedings, vol. 15, 2007, pp. 275–77. Scopus, doi:10.1007/978-3-540-68017-8_71. Full Text
Elsdon, M., et al. “Microwave holographic imaging of breast cancer.” Ieee 2007 International Symposium on Microwave, Antenna, Propagation and Emc Technologies for Wireless Communications, Mape, 2007, pp. 966–69. Scopus, doi:10.1109/MAPE.2007.4393791. Full Text
Smith, D., et al. “3D Microwave imaging for medical and security applications.” 2006 International Rf and Microwave Conference, (Rfm) Proceedings, 2006, pp. 233–37. Scopus, doi:10.1109/RFM.2006.331076. Full Text
Lim, T., et al. “Preliminary results from herschel-SPIRE flight instrument testing.” Proceedings of Spie the International Society for Optical Engineering, vol. 6265 I, 2006. Scopus, doi:10.1117/12.672752. Full Text
Smith, D., et al. “A microwave indirect holographic system for security and medical imaging applications.” European Space Agency, (Special Publication) Esa Sp, vol. 626 SP, 2006.
Elsdon, M., et al. “Early stage breast cancer detection using indirect microwave holography.” Proceedings of the 36th European Microwave Conference, Eumc 2006, 2006, pp. 1256–59. Scopus, doi:10.1109/EUMC.2006.281223. Full Text
Smith, D., et al. “Imaging of dielectric objects from phase patterns reconstructed using indirect holographic intensity patterns.” Iceaa 2005 9th International Conference on Electromagnetics in Advanced Applications and Eesc 2005 11th European Electromagnetic Structures Conference, 2005, pp. 401–04.
Smith, D., et al. “Imaging dielectric objects from scalar intensity patterns by means of indirect holography.” Ieee Antennas and Propagation Society, Ap S International Symposium (Digest), vol. 1 A, 2005, pp. 177–80. Scopus, doi:10.1109/APS.2005.1551275. Full Text