Negative Refractive Index Materials

2006 ◽  
Vol 3 (2) ◽  
pp. 189-218 ◽  
Author(s):  
Victor Veselago ◽  
Leonid Braginsky ◽  
Valery Shklover ◽  
Christian Hafner
Keyword(s):  
Photonic Crystals ◽  
Negative Refraction ◽  
Negative Refractive Index ◽  
Index Of Refraction ◽  
Negative Index ◽  
Practical Applications ◽  
The Third ◽  
Left Handed ◽  
Negative Index Of Refraction ◽  
History Of

The main directions of studies of materials with negative index of refraction, also called left-handed or metamaterials, are reviewed. First, the physics of the phenomenon of negative refraction and the history of this scientific branch are outlined. Then recent results of studies of photonic crystals that exhibit negative refraction are discussed. In the third part numerical methods for the simulation of negative index material configurations and of metamaterials that exhibit negative index properties are presented. The advantages and the shortages of existing computer packages are analyzed. Finally, details of the fabrication of different kinds of metamaterials are given. This includes composite metamaterials, photonic crystals, and transmission line metamaterials for different wavelengths namely radio frequencies, microwaves, terahertz, infrared, and visible light. Furthermore, some examples of practical applications of metamaterials are presented.

scholarly journals NEGATIVE REFRACTION AND SUBWAVELENGTH FOCUSING USING PHOTONIC CRYSTALS

2004 ◽  
Vol 18 (25) ◽  
pp. 1275-1291 ◽  
Author(s):  
EKMEL OZBAY ◽  
KAAN GUVEN ◽  
ERTUGRUL CUBUKCU ◽  
KORAY AYDIN ◽  
B. KAMIL ALICI
Keyword(s):  
Optical Properties ◽  
Photonic Crystals ◽  
Negative Refraction ◽  
Numerical Study ◽  
Effective Index ◽  
Index Of Refraction ◽  
Far Field ◽  
Two Dimensional ◽  
Flat Lens ◽  
Effective Index Of Refraction

In this article, we present an experimental and numerical study of novel optical properties of two-dimensional dielectric photonic crystals (PCs) which exhibit negative refraction. We investigate two mechanisms which utilize the band structure of the PC to generate a negative effective index of refraction (n eff <0) and demonstrate the negative refraction experimentally. To the isotropic extend of n eff , different PC slab structures are employed to focus the radiation of a point source. It is shown experimentally that the PC can generate an image of the source with subwavelength resolution in the vicinity of the PC interface. Using a different PC, one can also obtain a far field focusing. In the latter case, we explicitly show the flat lens behavior of the structure. These examples indicate that PC-based lenses can surpass limitations of conventional lenses and lead to novel optics applications.

Three-dimensional Negative Index of Refraction in the Ultraviolet

2012 ◽  
Author(s):  
Ting Xu ◽  
Maxim Abashin ◽  
Amit Agrawal ◽  
Kenneth Chau ◽  
Henri J. Lezec
Keyword(s):  
Three Dimensional ◽  
Index Of Refraction ◽  
Negative Index ◽  
Negative Index Of Refraction
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