Dynamically reconfigurable metamaterials for shielding and absorption in the GHz range

A dynamically reconfigurable metamaterial is presented where the complex frequency dependent permittivity of a silicon substrate is modified in the GHz range by an incident optical (infrared, IR) plane wave; the IR allows the generation of electron-hole pairs, thus modifying the substrate dielectric...

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Bibliographic Details
Published in2015 IEEE International Symposium on Electromagnetic Compatibility (EMC) pp. 1047 - 1052
Main Authors de Paulis, F., Rizza, C., Ciattoni, A., Palange, E., Orlandi, A.
Format Conference Proceeding Journal Article
LanguageEnglish
Published IEEE 01.08.2015
Subjects
absorption
Dielectric constant
Electromagnetic compatibility
Infrared
Metamaterials
Optical modulation
Optical polarization
Optical properties
Optical reflection
Permittivity
Plane waves
semiconductor permittivity
shielding
Silicon substrates
Slabs
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Summary:A dynamically reconfigurable metamaterial is presented where the complex frequency dependent permittivity of a silicon substrate is modified in the GHz range by an incident optical (infrared, IR) plane wave; the IR allows the generation of electron-hole pairs, thus modifying the substrate dielectric properties. Moreover the IR is spatially modulated to generate different permittivities along the two polarization directions thus achieving anisotropic material. The slab response is studied in terms of GHz power transmitted, reflected, and absorbed by the metamaterial.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
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SourceType-Conference Papers & Proceedings-2
ISSN:2158-110X
2158-1118
DOI:10.1109/ISEMC.2015.7256312