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arXiv · 1408.2399

Strong Purcell effect in anisotropic $\varepsilon$-near-zero metamaterials

A. V. Chebykin·A. A. Orlov·A. S. Shalin·A. N. Poddubny·P. A. Belov
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Abstract

We theoretically demonstrate the strong Purcell effect in $\varepsilon$-near-zero ultra-anisotropic uniaxial metamaterials with elliptic isofrequency surface. Contrary to the hyperbolic metamaterials, the effect does not rely on the diverging density of states and evanescent waves. As a result, both the radiative decay rate and the far-field emission power are enhanced. The effect can be realized in the periodic layered metal-dielectric nanostructures with complex unit cell containing two different metallic layers.

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A. V. Chebykin, A. A. Orlov, A. S. Shalin, A. N. Poddubny, P. A. Belov. 2014-08-11. Strong Purcell effect in anisotropic $\varepsilon$-near-zero metamaterials. https://doi.org/10.1103/physrevb.91.205126

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