Negative refraction: theory and application to thin metal layer superlens

[en] The main concepts dealing with negative refraction are clarified in order to understand if a high conductive metal layer thinner than the wavelength can really be considered as a metamaterial with a negative refraction index. The theoretical method to find the direction of phase velocity is clearly explained. The use of the causality principle is presented. We discuss why the negative refractive metamaterial has to be regarded as a dispersive one. Discussions are illustrated by means of FDTD simulations. The superlens application is presented. We explain why it is not obvious to consider a thin metal layer as a negative refractive material.

Disciplines :

Physics

Author, co-author :

Lecler, Sylvain

Frere, Benjamin

Habraken, Serge ; Université de Liège - ULiège > Département de physique > Optique - Hololab - CSL (Centre Spatial de Liège)

Meyrueis, Patrick

Language :

English

Title :

Negative refraction: theory and application to thin metal layer superlens

Publication date :

2008

Audience :

International

Journal title :

Proceedings of SPIE: The International Society for Optical Engineering

ISSN :

0277-786X

eISSN :

1996-756X

Publisher :

International Society for Optical Engineering, Bellingham, United States - Washington

Volume :

6987

Peer reviewed :

Peer reviewed

Additional URL :

http://spie.org/x648.html?product_id=780957

Available on ORBi :

since 12 June 2009

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