Babinet's principle and the band structure of surface waves on patterned metal arrays

J. D. Edmunds, M. C. Taylor, A. P. Hibbins, J. R. Sambles, I. J. Youngs
2010 Journal of Applied Physics  
The microwave response of an array of square metal patches and its complementary structure, an array of square holes, has been experimentally studied. The resonant phenomena, which yield either enhanced transmission or reflection, are attributed to the excitation of diffractively coupled surface waves. The band structure of these surface modes has been quantified for both p-͑transverse magnetic͒ and s-͑transverse electric͒ polarized radiation and is found to be dependent on the periodicity of
more » ... he periodicity of the electric and magnetic fields on resonance. The results are in excellent accord with predictions from finite element method modeling and the electromagnetic form of Babinet's principle ͓Babinet, C. R. Acad. Sci. 4, 638 ͑1837͔͒.
doi:10.1063/1.3406145 fatcat:ojnrsvtrrrex7imysiuq54nime