Negative refractive index in artificial metamaterials.
نویسنده
چکیده
We discuss optical constants in artificial metamaterials showing negative magnetic permeability and electric permittivity and suggest a simple formula for the refractive index of a general optical medium. Using the effective-field theory, we calculate the effective permeability and the refractive index of nanofabricated media composed of pairs of identical gold nanopillars with magnetic response in the visible spectrum.
منابع مشابه
Metamagnetism and Negative-Index Metamaterials
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متن کاملComment on "Negative refractive index in artificial metamaterials".
We dispute Grigorenko's statement [Opt. Lett. 31, 2483 (2006)] that measuring only the reflection intensity spectrum is sufficient for determining the effective refractive index. In addition, our simulations do not confirm his conclusions regarding the negative refractive index and the negative permeability of the nanopillar sample in the visible range.
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ورودعنوان ژورنال:
- Optics letters
دوره 31 16 شماره
صفحات -
تاریخ انتشار 2006