期刊
APPLIED PHYSICS LETTERS
卷 103, 期 5, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4817678
关键词
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资金
- Intelligent Systems Center at Missouri ST
- Materials Research Center at Missouri ST
- University of Missouri
- University of Missouri Research Board
- Ralph E. Powe Junior Faculty Enhancement Award
Epsilon-near-zero (ENZ) metamaterial slabs at visible frequencies based on metal-dielectric multilayers are experimentally realized. Transmission, reflection, and absorption spectra are measured and used to determine the complex refractive indices and the effective permittivities of the ENZ slabs, which agree with the results obtained from both the numerical simulations and the optical nonlocalities analysis. Furthermore, light propagation in ENZ slabs and directional emission from ENZ prisms are also analyzed. The accurate determination of the ENZ wavelength for metal-dielectric multilayer metamaterial slabs is important for realizing many unique applications, such as phase front manipulation and enhancement of photonic density of states. (C) 2013 AIP Publishing LLC.
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