Coded Metasurface with Optical Activity Based on Broadband Asymmetric Transmission of Linearly Polarized Electromagnetic Waves

2019 ◽  
Author(s):  
R. Varsha ◽  
M. Pavithra ◽  
N. Yogesh
Keyword(s):  
Optical Activity ◽  
Electromagnetic Waves ◽  
Asymmetric Transmission ◽  
Linearly Polarized

Asymmetric transmission of linearly polarized electromagnetic waves using chiral metamaterials with constant chirality over a certain frequency band

2014 ◽  
Vol 28 (32) ◽  
pp. 1450250 ◽  
Author(s):  
Furkan Dincer ◽  
Muharrem Karaaslan ◽  
Oguzhan Akgol ◽  
Emin Unal ◽  
Cumali Sabah
Keyword(s):  
Frequency Band ◽  
Electromagnetic Waves ◽  
Dynamic Structure ◽  
Dielectric Substrate ◽  
Suggested Model ◽  
Asymmetric Transmission ◽  
Chiral Metamaterials ◽  
Linearly Polarized ◽  
Novel Devices ◽  
Polarization Rotators

In this study, a dynamic chiral metamaterial (MTM) structure leading to an asymmetric electromagnetic (EM) wave transmission for linear polarization is presented. The structure is composed of square-shaped resonator with gaps on both sides of a dielectric substrate with a certain degree of rotation. The dynamic structure is adjustable via various parameters to fit any desired frequency ranges. Theoretical and experimental analysis of the proposed structure are conducted and given in detail. The suggested model can provide constant chirality over a certain frequency band and thus, it can be used to design myriad novel devices such as EM transmission and antireflection filters, and polarization rotators for desired frequency regimes.

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