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.
Gollub, J. N., et al. “Large Metasurface Aperture for Millimeter Wave Computational Imaging at the Human-Scale.” Scientific Reports, vol. 7, Feb. 2017, p. 42650. Epmc, doi:10.1038/srep42650. Full Text
Metcalfe, A., et al. “Development of high temperature, radiation hard detectors based on diamond.” Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 845, Feb. 2017, pp. 128–31. Scopus, doi:10.1016/j.nima.2016.06.091. Full Text
Watts, C. M., et al. “X-band SAR imaging with a liquid-crystal-based dynamic metasurface antenna.” Journal of the Optical Society of America B: Optical Physics, vol. 34, no. 2, Feb. 2017, pp. 300–06. Scopus, doi:10.1364/JOSAB.34.000300. Full Text
Stewart, Jon W., et al. “Toward Multispectral Imaging with Colloidal Metasurface Pixels.” Advanced Materials (Deerfield Beach, Fla.), vol. 29, no. 6, Feb. 2017. Epmc, doi:10.1002/adma.201602971. Full Text
Metcalfe, A., et al. “Diamond based detectors for high temperature, high radiation environments.” Journal of Instrumentation, vol. 12, no. 1, Jan. 2017. Scopus, doi:10.1088/1748-0221/12/01/C01066. Full Text
Smith, D. R., et al. “An analysis of beamed wireless power transfer in the Fresnel zone using a dynamic, metasurface aperture.” Journal of Applied Physics, vol. 121, no. 1, Jan. 2017. Scopus, doi:10.1063/1.4973345. Full Text
Yurduseven, O., et al. “Design and Analysis of a Reconfigurable Holographic Metasurface Aperture for Dynamic Focusing in the Fresnel Zone.” Ieee Access, vol. 5, Jan. 2017, pp. 15055–65. Scopus, doi:10.1109/ACCESS.2017.2712659. Full Text
Thornton, J., and D. Smith. “Feed and loss effects in spherical lens antennas for satellite communications.” International Journal of Rf and Microwave Computer Aided Engineering, vol. 27, no. 1, Jan. 2017. Scopus, doi:10.1002/mmce.21036. Full Text
Marks, D. L., et al. “Fourier Accelerated Multistatic Imaging: A Fast Reconstruction Algorithm for Multiple-Input-Multiple-Output Radar Imaging.” Ieee Access, vol. 5, Jan. 2017, pp. 1796–809. Scopus, doi:10.1109/ACCESS.2017.2661068. Full Text
Zhu, R., et al. “Versatile Manufacturing of Split-Block Microwave Devices Using Rapid Prototyping and Electroplating.” Ieee Antennas and Wireless Propagation Letters, vol. 16, Jan. 2017, pp. 157–60. Scopus, doi:10.1109/LAWP.2016.2563398. Full Text
Chandrasekar, R., et al. “Studying the interplay of electric and magnetic resonance- enhanced second harmonic generation: Theory and experiments.” Cleo: Qels Fundamental Science, Cleo Qels 2015, 2015. Scopus, doi:10.1364/CLEO_QELS.2015.FW3D.2. Full Text
Baron, A., et al. “Large and ultrafast nonlinear absorption of an air/gold plasmonic waveguide.” Cleo: Qels Fundamental Science, Cleo Qels 2015, 2015. Scopus, doi:10.1364/CLEO_QELS.2015.FM3E.4. Full Text
Marks, D. L., and D. R. Smith. “Metamaterial resonators for dynamic spatial millimeter-wave modulators.” Proceedings of Frontiers in Optics 2015, Fio 2015, 2015.
Thornton, J., et al. “Reduced height Luneburg lens antennas for satellite communications-on-the-move.” Proceedings of 14th Conference on Microwave Techniques, Comite 2015, 2015. Scopus, doi:10.1109/COMITE.2015.7120325. 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.
Mikkelsen, M. H., et al. “Giant fluorescence enhancement of molecules coupled to plasmonic nanoscale patch antennas.” Frontiers in Optics, Fio 2014, 2014.
Chandrasekar, R., et al. “Second harmonic generation by metamagnetics: Interplay of electric and magnetic resonances.” Frontiers in Optics, Fio 2014, 2014.