Focusing light using negative refraction
نویسندگان
چکیده
منابع مشابه
Focusing light using negative refraction
A slab of negatively refracting material, thickness d , can focus an image at a distance 2d from the object. The negative slab cancels an equal thickness of positive space. This result is a special case of a much wider class of focusing: any medium can be optically cancelled by an equal thickness of material constructed to be an inverted mirror image of the medium, with ε, μ reversed in sign. W...
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Elastic waves are guided along finite structures such as cylinders, plates, or rods through reflection, refraction, and mode conversion at the interfaces. Such wave propagation is ubiquitous in the world around us, and studies of elastic waveguides first emerged in the later part of the 19(th) century. Early work on elastic waveguides revealed the presence of backward propagating waves, in whic...
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In this article, we present an experimental and numerical study of novel optical properties of two-dimensional dielectric photonic crystals (PCs) which exhibit negative refraction. We investigate two mechanisms which utilize the band structure of the PC to generate a negative effective index of refraction (neff < 0) and demonstrate the negative refraction experimentally. To the isotropic extend...
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ژورنال
عنوان ژورنال: Journal of Physics: Condensed Matter
سال: 2003
ISSN: 0953-8984,1361-648X
DOI: 10.1088/0953-8984/15/37/004