Journal
CRITICAL REVIEWS IN SOLID STATE AND MATERIALS SCIENCES
Volume 41, Issue 5, Pages 367-385Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/10408436.2015.1135413
Keywords
Structured surfaces; meta materials; negative refractive index; optical materials
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Materials with negative index of refraction have properties that are not naturally available. Such properties can be used to develop novel devices like the superlens which can surpass the diffraction limit. Optical cloaking can be achieved through this negative refractive index method. This article reviews the progress made in the area of negative refractive index materials from the first generation of negative electrical permittivity to the demonstration of negative index of refraction at optical frequency, with the relevant discussion on the physics of these materials. The prime focus of this article is on experimental demonstrations and fabrication related issues of negative refractive index materials which makes use of structured surfaces.
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