Journal
APPLIED PHYSICS LETTERS
Volume 89, Issue 20, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.2387873
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The authors present an exact, analytic study of oscillatory modes guided by generalized asymmetric two-dimensional planar heterostructures with negative refractive index in either the core or the cladding. It is shown that, in sharp contrast to normal dielectric configurations, these waveguides always possess a frequency region where the second-order oscillatory mode may exist alone and allow for attaining zero group velocity under weak guidance conditions. In addition the mode has a field distribution that renders it excitable with an end-fire approach, making such structures attractive for applications requiring slow light. Advantages compared to previous methods of slowing or stopping light are discussed. (c) 2006 American Institute of Physics.
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