metamaterials

Metamaterials

Artificial materials with unusual electromagnetic properties

Plasmonics

Plasmonics

Specific metals can offer surprising benefits for guiding and steering

Transformation Optics

Transformation Optics

A new approach to optical design, including invisibility cloaks

Commercialization

Commercialization

Introducing products or production methods into commerce

Nonlinear Metamaterials

Nonlinearity

Extending metamaterials to the nonlinear regime

Nonlinear Metamaterials

Metasurface Imager

Metasurfaces can be used as unique antennas & imaging devices

Nonlinear Metamaterials

Wireless Power

Metamaterials can play a role in wireless power transfer

Recent Papers

  • Transformation-optics simulation method for stimulated Brillouin scattering

    R. Zecca, PT Bowen, DR Smith, S Larouche
    Physical Review A 94, 6 (2016)
    DOI: 10.1103/PhysRevA.94.063818

  • Microwave Imaging Using a Disordered Cavity with a Dynamically Tunable Impedance Surface

    T Sleasman, MF Imani, JN Gollub, DR Smith
    Physical Review Applied 6, 5 (2016)
    DOI: 10.1103/PhysRevApplied.6.054019

  • Analytical modeling of printed metasurface cavities for computational imaging

    MF Imani, T Sleasman, JN Gollub, DR Smith
    Journal of Applied Physics 120, 14 (2016)
    DOI: 10.1063/1.4964336

Research Highlight


4 January 2017

Metamaterials for Wireless Power

Powering devices wirelessly is currently a major topic of interest. Metamaterials have the potential to make wireless power transfer easier and more efficient in a number of different ways. In an analysis just published by our group in the Journal of Applied Physics, written in collaboration with colleagues at the University of Washington and Intellectual Ventures (more details here), we describe how a dynamically tunable metamaterial antenna could be used to beam focused power to devices for small and medium distances. The illustration above depicts a single metasurface panel beaming power to numerous devices.

Upcoming Conferences

Latest News

  • 13 December 2016
    Prof. David R. Smith elected to the National Academy of Inventors. The NAI recognizes academic inventors for their prolific spirit of innovation in creating or facilitating outstanding inventions that have made a tangible impact on the quality of life, economic development and the welfare of society.

  • 4 March 2015
    Pratt celebrated Kymeta's "Drive Across America," in which a Toyota 4-Runner was equipped with a Kymeta satellite antenna and driven from Seattle to Washington DC!

  • 10 July 2014
    David Smith has been named chair of Duke's Department of Electrical and Computer Engineering, effective August 1, 2014.