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9 November 2016 Homogenization of epsilon near zero composite metamaterials (Conference Presentation)
Anatoliy O. Pinchuk
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Proceedings Volume 9918, Metamaterials, Metadevices, and Metasystems 2016; 991820 (2016) https://doi.org/10.1117/12.2237059
Event: SPIE Nanoscience + Engineering, 2016, San Diego, California, United States
Abstract
Epsilon Near Zero (ENZ) metamaterials are interest for a broad range of applications in optoelectronics, communication and photovoltaic. Composite metal-dielectric metamaterials can be designed to exhibit ENZ in a specific frequency range. However, the frequency range if the ENZ is oftentimes limited. Recently, we developed a few different routs to designs metal-dielectric metamaterials with a broadband ENZ in the visible and infrared frequency domain. In this talk, I will present a homogenization theory for 1D and 2D metamaterials based on a few different geometries of metal-dielectric composites. Our approach is conceptually simple, elegant, and technically feasible, while its underlying physics is clear. We use a homogenization technique to estimate the real part of the effective permittivity nulling for a few different geometries of metal-dielectric composites. The design of broadband epsilon-near-zero metamaterials have been demonstrated through the solution of an inverse problem. Furthermore, we consider a few different geometries for realization of a broadband ENZ, such as core-shell spherical nanoparticle and nano-cylinders.
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Anatoliy O. Pinchuk "Homogenization of epsilon near zero composite metamaterials (Conference Presentation)", Proc. SPIE 9918, Metamaterials, Metadevices, and Metasystems 2016, 991820 (9 November 2016); https://doi.org/10.1117/12.2237059
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KEYWORDS
Metamaterials
Composites
Homogenization
Infrared radiation
Inverse problems
Optoelectronics
Photovoltaics
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