Design of metamaterials with predetermined optical properties for broadband applications
2012; SPIE; Volume: 8269; Linguagem: Inglês
10.1117/12.906584
ISSN1996-756X
AutoresА. В. Гончаренко, V. U. Nazarov, Kuan-Ren Chen,
Tópico(s)Photonic and Optical Devices
ResumoIn terms of the effective medium theory, we develop a novel technique for designing nanostructured metamaterials (photonic crystals) with predetermined dielectric and optical properties over a frequency band. The technique is based on materials' architecture and reduces to the design of one-dimensional or two-dimensional nanostructured metal-dielectric composites with a specified graded geometry. As particular examples, we show how to tailor the materials with epsilonnear- zero (ENZ), ultralow-refractive-index (ULRI), and refractive index-near-unity (RINU) over a frequency band using a fitting procedure. The quality of fitting is discussed by the example of RINU metamaterials.
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