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Design of volumetric sub-THz negative refractive index metamaterial with gain

Conventional passive metamaterials always suffer from the limitation of loss and dispersion due to fundamental causality issue. Especially it becomes severe due to material loss at terahertz frequency. Our work resolves the loss problem by introducing gain device into the metamaterial structure. A passive volumetric metamaterial is firstly designed on the quartz substrate. A negative resistance is inserted into the wire of the structure to provide the gain. We have identified resonant tunneling diodes that work up into THz frequency and shown in simulation that simultaneous negative index and gain can be obtained.

Identiferoai:union.ndltd.org:arizona.edu/oai:arizona.openrepository.com:10150/622669
Date06 1900
CreatorsKantemur, A., Tang, Q., Xin, H.
ContributorsDepartment of Electrical and Computer Engineering, University of Arizona, This work is supported in part by AFOSR grant under FA9550-13-1-0209
PublisherIEEE
Source SetsUniversity of Arizona
LanguageEnglish
Detected LanguageEnglish
TypeArticle
RightsCopyright © 2016, IEEE
Relationhttp://ieeexplore.ieee.org/document/7695843/

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