Total absorption in asymmetric hyperbolic media

Igor S. Nefedov, Constantinos A. Valagiannopoulos, Seed M. Hashemi, Evgeny I. Nefedov

Research output: Contribution to journalArticle

51 Citations (Scopus)

Abstract

Finite-thickness slabs of hyperbolic media with tilted optical axes exhibit asymmetry properties for waves propagating upward and downward with respect to slab interfaces. Under certain conditions, asymmetric hyperbolic media acquire extreme permittivity parameters and the difference between upward and downward propagating waves becomes very large. Furthermore, both waves can be perfectly matched with the free space; such a feature makes possible the development of optically ultra thin perfect absorbers. The proposed approach is unified and allows the use of different -negative materials. Of particular interest is the asymmetric hyperbolic medium, made of silicon nanowires, since it can be directly applicable to solar cell systems.

Original languageEnglish
Article number2662
JournalScientific Reports
Volume3
DOIs
Publication statusPublished - 2013

ASJC Scopus subject areas

  • General

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