Zero phase delay in negative-refractive-index photonic crystal superlattices
نویسندگان
چکیده
منابع مشابه
Zero phase delay in negative-refractive-index photonic crystal superlattices
We show that optical beams propagating in path-averaged zero-index photonic crystal superlattices can have zero phase delay. The nanofabricated superlattices consist of alternating stacks of negative index photonic crystals and positive index homogeneous dielectric media, where the phase differences corresponding to consecutive primary unit cells are measured with integrated Mach-Zehnder interf...
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An intense interest in negative index metamaterials (NIMs) [1-2] has been witnessed over the last years. Metal based NIMs [3-11] have been demonstrated at both microwave and infrared frequencies with a motivation mainly coming from the unusual physical properties and potential use in many technological applications [12-21]; however, they usually have large optical losses in their metallic compo...
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ژورنال
عنوان ژورنال: Nature Photonics
سال: 2011
ISSN: 1749-4885,1749-4893
DOI: 10.1038/nphoton.2011.129