Microwave and optical sub-wavelength imaging without negative refraction and amplification of evanescent waves

2006 ◽  
Author(s):  
P.A. Belov ◽  
Y. Hao
Keyword(s):  
Negative Refraction ◽  
Evanescent Waves ◽  
Sub Wavelength

scholarly journals Negative refraction and sub-wavelength focusing in the visible range using transparent metallo-dielectric stacks

2007 ◽  
Vol 15 (2) ◽  
pp. 508 ◽  
Author(s):  
Michael Scalora ◽  
Giuseppe D'Aguanno ◽  
Nadia Mattiucci ◽  
Mark J. Bloemer ◽  
Domenico de Ceglia ◽  
...  
Keyword(s):  
Negative Refraction ◽  
Visible Range ◽  
Sub Wavelength

Artificial materials or metamaterials

2018 ◽  
Author(s):  
L. Solymar ◽  
D. Walsh ◽  
R. R. A. Syms
Keyword(s):  
Magnetic Resonance Imaging ◽  
Negative Refraction ◽  
Plasma Frequency ◽  
Single Layer ◽  
Evanescent Waves ◽  
Optical Phonons ◽  
Resonance Imaging ◽  
Artificial Materials ◽  
The Difference ◽  
Wire Media

The difference between natural and artificial materials is explained. The equivalent plasma frequency of wire media is derived. A list of metamaterial resonators is presented. The possibility of achieving negative refraction and its significance are discussed. It is shown that under certain circumstances it is possible to produce a perfect lens that could transfer evanescent waves aswell. Themulti-layer lens is shown to have advantages over the single-layer lens. The operation of a SiC lens based on the negative dielectric constant due to optical phonons is discussed. Detectors for magnetic resonance imaging, relying on the resonance of magnetoinductive waves are shown to be a potential application.

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