Dielectric Optical-Controllable Magnifying Lens by Nonlinear Negative Refraction
نویسندگان
چکیده
منابع مشابه
Dielectric Optical-Controllable Magnifying Lens by Nonlinear Negative Refraction
A simple optical lens plays an important role for exploring the microscopic world in science and technology by refracting light with tailored spatially varying refractive indices. Recent advancements in nanotechnology enable novel lenses, such as, superlens and hyperlens, with sub-wavelength resolution capabilities by specially designed materials' refractive indices with meta-materials and tran...
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With a conventional lens sharpness of the image is always limited by the wavelength of light. An unconventional alternative to a lens, a slab of negative refractive index material, has the power to focus all Fourier components of a 2D image, even those that do not propagate in a radiative manner. Such "superlenses" can be realized in the microwave band with current technology. Our simulations s...
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Article history: Received 22 August 2008 Accepted 1 September 2008 Communicated by V.M. Agranovich PACS: 78.20.Ci 42.30.Wb 73.20.Mf
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We design 3D metallic nanowire media with different structures and numerically demonstrate they can be effective homogeneous indefinite anisotropic media by showing their dispersion relations are hyperbolic. A nice fitting procedure is exploited to obtain the dispersion relations, from which we retrieve the effective permittivities. The pseudo focusing for the real 3D wire medium agrees very we...
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ژورنال
عنوان ژورنال: Scientific Reports
سال: 2015
ISSN: 2045-2322
DOI: 10.1038/srep11892