Total and partial reflection from the end of a parallel-plate waveguide with an extended dielectric slab
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چکیده
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15 صفحه اولSuperluminal pulse reflection from a weakly absorbing dielectric slab.
Group delay for a reflected light pulse from a weakly absorbing dielectric slab is theoretically investigated, and large negative group delay is found for weak absorption near a resonance of the slab [Re(kd)=mpi]. The group delay for both the reflected and transmitted pulses will be saturated with an increase of the absorption.
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The field of metamaterials and the formalism of transformation optics have provided a prescription for constructing artificial dielectrics with unique properties such as light trapping and cloaking. Here, we describe a different approach to creating an inhomogeneous artificial medium, based on waveguide techniques, which does not rely on engineered subwavelengthscale components. We demonstrate ...
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ژورنال
عنوان ژورنال: Radio Science
سال: 1981
ISSN: 0048-6604
DOI: 10.1029/rs016i001p00001