Analytical Study of Sub-Wavelength Imaging by Uniaxial Epsilon-Near-Zero Metamaterial Slabs
arXiv:1205.1620 · doi:10.1103/PhysRevB.86.115123
Abstract
We discuss the imaging properties of uniaxial epsilon-near-zero metamaterial slabs with possibly tilted optical axis, analyzing their sub-wavelength focusing properties as a function of the design parameters. We derive in closed analytical form the associated two-dimensional Green's function in terms of special cylindrical functions. For the near-field parameter ranges of interest, we are also able to derive a small-argument approximation in terms of simpler analytical functions. Our results, validated and calibrated against a full-wave reference solution, expand the analytical tools available for computationally-efficient and physically-incisive modeling and design of metamaterial-based sub-wavelength imaging systems.
25 pages, 9 figures (modifications in the text; two figures and several references added)
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Cited by in corpus (7)
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- Polariton excitation in epsilon-near-zero slabs: transient trapping of slow light
- Goos-Hänchen and Imbert-Fedorov Shifts for Epsilon-Near-Zero Materials
- One-Way Optical Transition based on Causality in Momentum Space
- Super-resolution image transfer by a vortex-like metamaterial
- Pseudocanalization regime for magnetic dark-field hyperlens
- Engineering the point spread function of layered metamaterials