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.
Sleasman, T., et al. “Single-frequency microwave imaging with dynamic metasurface apertures.” Journal of the Optical Society of America B: Optical Physics, vol. 34, no. 8, Aug. 2017, pp. 1713–26. Scopus, doi:10.1364/JOSAB.34.001713. Full Text
Shin, Dongheok, et al. “Scalable variable-index elasto-optic metamaterials for macroscopic optical components and devices.” Nature Communications, vol. 8, July 2017, p. 16090. Epmc, doi:10.1038/ncomms16090. Full Text
Pedross-Engel, A., et al. “Enhanced resolution stripmap mode using dynamic metasurface antennas.” Ieee Transactions on Geoscience and Remote Sensing, vol. 55, no. 7, July 2017, pp. 3764–72. Scopus, doi:10.1109/TGRS.2017.2679438. Full Text
Yurduseven, Okan, et al. “Millimeter-wave spotlight imager using dynamic holographic metasurface antennas.” Optics Express, vol. 25, no. 15, July 2017, pp. 18230–49. Epmc, doi:10.1364/oe.25.018230. Full Text
Menard, J. E., et al. “Overview of NSTX Upgrade initial results and modelling highlights.” Nuclear Fusion, vol. 57, no. 10, June 2017. Scopus, doi:10.1088/1741-4326/aa600a. Full Text
Boyarsky, Michael, et al. “Synthetic aperture radar with dynamic metasurface antennas: a conceptual development.” Journal of the Optical Society of America. A, Optics, Image Science, and Vision, vol. 34, no. 5, May 2017, pp. A22–36. Epmc, doi:10.1364/josaa.34.000a22. Full Text
Degiron, Aloyse, et al. “Efficient finite element resolution of gyromagnetic and gyroelectric nonreciprocal electromagnetic problems.” Optics Express, vol. 25, no. 10, May 2017, pp. 11088–102. Epmc, doi:10.1364/oe.25.011088. Full Text
Marks, Daniel L., et al. “Cavity-backed metasurface antennas and their application to frequency diversity imaging.” Journal of the Optical Society of America. A, Optics, Image Science, and Vision, vol. 34, no. 4, Apr. 2017, pp. 472–80. Epmc, doi:10.1364/josaa.34.000472. Full Text
Bowen, P. T., et al. “Effective-medium description of a metasurface composed of a periodic array of nanoantennas coupled to a metallic film.” Physical Review A, vol. 95, no. 3, Mar. 2017. Scopus, doi:10.1103/PhysRevA.95.033822. Full Text
Ren, Y., et al. “Recent progress in understanding electron thermal transport in NSTX.” Nuclear Fusion, vol. 57, no. 7, Mar. 2017. Scopus, doi:10.1088/1741-4326/aa4fba. Full Text
Akselrod, G. M., et al. “Plasmonic nanopatch antennas for large purcell enhancement.” Conference on Lasers and Electro Optics Europe Technical Digest, vol. 2015-August, 2015.
Baron, A., et al. “Large and ultrafast nonlinear absorption of an air/gold plasmonic waveguide.” Conference on Lasers and Electro Optics Europe Technical Digest, vol. 2015-August, 2015.
Baron, A., et al. “Scaling of the nonlinear response of metal/dielectric plasmonic waveguides.” Conference on Lasers and Electro Optics Europe Technical Digest, vol. 2015-August, 2015.
Bowen, P. T., et al. “Analytic modeling of metmaterial absorbers.” Conference on Lasers and Electro Optics Europe Technical Digest, vol. 2015-August, 2015.
Chandrasekar, R., et al. “Studying the interplay of electric and magnetic resonance-enhanced second harmonic generation: Theory and experiments.” Conference on Lasers and Electro Optics Europe Technical Digest, vol. 2015-August, 2015.
Zheng, H., et al. “Microwave inverse scattering using scalar indirect holographic techniques.” Mediterranean Microwave Symposium, vol. 2015-April, 2015. Scopus, doi:10.1109/MMS.2014.7088948. Full Text
Smith, D., et al. “The development of indirect microwave holography for measurement and imaging applications.” Mediterranean Microwave Symposium, vol. 2015-January, 2015. Scopus, doi:10.1109/MMS.2015.7375501. Full Text
Magnoni, L., et al. “Monitoring WLCG with lambda-architecture: A new scalable data store and analytics platform for monitoring at petabyte scale.” Journal of Physics: Conference Series, vol. 664, no. 5, 2015. Scopus, doi:10.1088/1742-6596/664/5/052023. Full Text
Ruiz, J. R., et al. “Stabilization of electron-scale turbulence by electron density gradient in NSTX.” 42nd European Physical Society Conference on Plasma Physics, Eps 2015, 2015.
Diallo, A., et al. “Inter-ELM pedestal evolution and the role of edge fluctuations in the C-Mod and DIII-D tokamaks.” 42nd European Physical Society Conference on Plasma Physics, Eps 2015, 2015.