Active Control of Electromagnetic Induced Transparency Simulation in Terahertz Metamaterials
Based on terahertz technology,it is a new and unique high-frequency radiation source that is conducive to meeting the ultra-high speed requirements of wireless transmission of big data.And it can detect enemy concealed weapons through through wall penetration technology,which helps enhance our national defense strength.This article studies an optical method that actively controls electromagnetic induced transparency by controlling dark modes,and integrates optical silicon into metamaterial cells to change the conductivity of silicon blocks(simulating the excitation of light pulses).The transparent window can achieve great switching and realize optical tunable group delay of terahertz light.Finally,the slow light effect induced by electromagnetic transparency can greatly reduce the speed of light pulses,which is expected to be helpful for the development of quantum communication and wireless technology.
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