Publications [#269743] of David R. Smith

Papers Published
  1. Rose, A; Smith, DR, Broadly tunable quasi-phase-matching in nonlinear metamaterials, Physical Review A, vol. 84 no. 1 (2011) [doi] .

    The ability to tune the quasi-phase-matching (QPM) frequency is a highly desirable though lacking feature of many nonlinear devices. To this end, we consider QPM in a special class of active nonlinear metamaterials (MMs), whose properties can be controlled postfabrication. By application of a tunable, periodic perturbation in the linear susceptibility (magnetic or electric) of a MM, a single nonlinear device can be constructed to operate over an exceedingly broad bandwidth. We propose a nonlinear MM for QPM second-order harmonic generation at terahertz frequencies, predicted to have a tunable bandwidth of over 100%. © 2011 American Physical Society.