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Single-Polarization Double Refraction in Plasmonic Crystals: Considerations on Energy Flow
Abstract:
We examined the optical properties of nanolayered metal-dielectric lattices. At subwavelength regimes, the periodic array of metallic nanofilms demonstrates nonlocality-induced double refraction, conventional positive and as well as negative. In particular, we report on energy-flow considerations concerning both refractive behaviors concurrently. Numerical simulations provide transmittance of individual beams in Ag-TiO2 metamaterials under different configurations. In regimes of the effective-medium theory predicting elliptic dispersion, negative refraction may be stronger than the expected positive refraction.
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729-733
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Online since:
January 2014
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© 2014 Trans Tech Publications Ltd. All Rights Reserved
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