Optically Controlled THz Metamaterial Modulators

Polina Stefanova,Andreas K. Klein,Rhiannon Lees,Andrew J. Gallant,Claudio Balocco

2018 43RD INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ)（2018）

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摘要

Optically controlled amplitude and phase modulators based on split ring resonator (SRR) metamaterials at THz frequencies were simulated, fabricated and measured. Split ring resonator aluminium structures were patterned on High Resistivity Float Zone (HR-FZ) Silicon and measured with the structures excited by continuous wave (CW) THz radiation using a Vector Network Analyser (VNA) in the frequency range between 0.75 and 1.1 THz. Extreme amplitude modulation depths and phase shift were observed when the structures were under optical illumination with CW white light.

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关键词

THz metamaterial,phase modulators,split ring resonator metamaterials,SRR,THz frequencies,split ring resonator aluminium structures,High Resistivity Float Zone Silicon,continuous wave THz radiation,Vector Network Analyser,extreme amplitude modulation depths,phase shift,optical illumination,optically controlled THz metamaterial modulators,optically controlled amplitude,CW white light,frequency 0.75 THz to 1.1 THz

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