Title

Loss-Compensated Broadband Epsilon-Near-Zero Metamaterials with Gain Media

Editor(s)

Lam, Nghi Q.

Abstract

The concept of loss-compensated broadband epsilon-near-zero metamaterials consisting of step-like metal-dielectric multilayer structures doped with gain media is proposed based on the combination of the Milton representation of the effective permittivity and the optical nonlocality due to the metal-dielectric multilayer structures. With the loss compensation by gain media, broadband epsilon-near-zero metamaterials possesses significantly low material loss in optical frequency range, leading to superior broadband electromagnetic properties for realizing unique functional optical devices, such as the demonstrated prisms for broadband directional emission and S-shaped lenses for phase front shaping.

Department(s)

Mechanical and Aerospace Engineering

Keywords and Phrases

Pemittivity; Prisms; Gold; Metamaterials; Multilayers; Optical Devices; Dielectrics; Lenses; Refractive Index; Optical Materials

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2013 American Institute of Physics (AIP), All rights reserved.


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