Simulation of metamaterials negative refractive index
Journal Title: Journal of New technology and Materials - Year 2018, Vol 8, Issue 2
Abstract
Research on artificial structures have practically achieve what Victor Veselago predicted in the 70s, namely engineering permeability and permittivity, which made both simultaneously negative, make possible the existence of effects negative refractive. John Pendry mentioned the possibility of making perfect lens using a flat layer of material left-hand whose relative permittivity and permeability equal to -1 must be able to focus a point source with perfect resolution. In his demonstration, Pendry capital shows the importance of the evanescent waves in this property, these waves undergoing amplification in the left hand material, breaking the Rayleigh limit . Here we are in the field of metamaterials characterized by a structure largely under-wavelength. we present the results obtained for the determination of all possible operating points, seeking the band gaps can TE and TM and the band gaps in a common two-dimensional periodic structure of triangular air holes in a dielectric with a refractive index n = 3.26
Authors and Affiliations
Tahar Ghadbane, Hocine Guessas
Keywords
Related Articles
- EP ID EP449739
- DOI -
- Views 105
- Downloads 0
Effect of Al doping on the structural and optical properties of SnO2 thin films elaborated by sol-gel technique
In this study, the influence of increasing of the Al concentration on the structural and optical properties of SnO2 thin films were investigated. Pure and aluminum-doped SnO2 thin films were prepared by sol–gel depositio...
Investigations of achieved performances of solar cells based chalcogenide Via TCAD Tools
In this work, numerical simulations are performed of both single junction solar cell based copper indium diselenide (CIS) and copper indium gallium diselenide (CIGS) with a window layer (ZnO) and a buffer layer(CdS ).The...
Analysis of impurities of Nd-Fe-B Magnet by nuclear method and recovery by precipitation chemical of Nd and Pr rare earths
The products of the new information and communication technologies (NTIC), whose life often not exceed three years, became consumables to the computer image and other waste that contains neodymium and praseodymium (rare...
Antibacterial effects and fastness properties of dyed silk fabric with curcumin in presence of organic and bio mordants
Curcumin, a common natural dye used for fabric and food colorations, was used as an antimicrobial finish due to its bactericidal properties on dyed textiles. In thiswork, silk fabrics were treated with curcumin andmordan...
The barrier height and the series resistance of Ag/SnO2/Si/Au Schottky diode determined by Cheung and Lien methods
Electronic parameters of Ag/SnO2 /Si/Au Schottky diode (SD) determined by Cheung and Lien methods are extracted using the current-voltage (I-V) and the capacitance-voltage (C-V) characteristics. Such SD is fabricated by...