Properties of defect modes in one-dimensional photonic crystals that contain single negative materials

Citation:
EL-NAGGAR, S. A., "Properties of defect modes in one-dimensional photonic crystals that contain single negative materials", Optical Engineering, vol. 52, issue 2, pp. 024602-1-8, 2013.

Abstract:

We examine the properties of the defect modes arising in the
zero-effective phase (zero-φ) gap when a dielectric defect layer is introduced
in a one-dimensional photonic crystal containing single negative
materials. We show that the defect modes inside the zero-φ gap can be
as sensitive to the incidence angle as those inside the Bragg gap. In addition,
adjusting the properties of the dielectric defect layer can control the
frequencies and the number of defect modes. We present a brief design of
a polarization-independent spatial filter based on those defects. The proposed
spatial filter can work at dual carrier frequencies with low-pass and
wide-pass characteristics. Our results can help improve the performance
of microwave devices independent of the source wave polarization

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