DocumentCode :
3370602
Title :
Deep subwavelength electromagnetic transparence through dual metallic gratings with ultranarrow slits
Author :
Chunyin Qiu ; Sucheng Li ; Ruirui Chen ; Bo Hou ; Feng Li ; Zhengyou Liu
Author_Institution :
Key Lab. of Artificial Micro- & Nano-Struct. of Minist. of Educ., Wuhan Univ., Wuhan, China
fYear :
2012
fDate :
8-10 Oct. 2012
Firstpage :
1
Lastpage :
3
Abstract :
We study the transmission response of microwaves through two identical metallic plates perforated with periodical ultranarrow slits. The experimental and numerical transmission spectra consistently display a striking transmission peak at wavelength much larger than any characteristic length of the microstructure (e.g., about 20-fold of the lattice constant), which can not be directly interpreted by the existing mechanisms. Both the LC-circuit-based microscopic picture and the effective-medium-based macroscopic model are established to capture the essential physics behind such unexpected resonance at the deep subwavelength scale.
Keywords :
diffraction gratings; electromagnetic wave transmission; microwave materials; LC circuit based microscopic picture; deep subwavelength electromagnetic transparence; dual metallic gratings; effective medium based macroscopic model; lattice constant; metallic plates; transmission response; ultranarrow slits; Color; Educational institutions; Gratings; Lattices; Microstructure; Physics; Resonant frequency;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Metamaterials (Meta), 2012 International Workshop on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4673-2807-4
Type :
conf
DOI :
10.1109/META.2012.6464907
Filename :
6464907
Link To Document :
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