Realization of a tunable double-fishnet metamaterial structure based on the plasmon-induced transparency

ABSTRACT

A high transmission tunable metamaterial structure is proposed and manufactured experimentally in the THz range. A transmission peak is achieved at resonance frequency 5.97THz based on the bright-bright modes coupling effect. The transmission peak can be controlled by changing the periodicity P of the unit cell or the diameter D increasing. Moreover, the transmission peak can also be controlled by changing the temperature. The effect of three gases (carbon dioxide, carbon monoxide, and nitric oxide) on the transmission peak is also measured. The effect of liquids is also measured in experiments.

KEYWORDS:

• Metamaterials
• transmission
• temperature

• OCIS Codes: (250.5403) Plasmonics
• (160.3918) metamaterials
• (040.2235) Far infrared or terahertz
• (310.6860) Thin films
• optical properties

Additional information

Funding

This work was supported by Young and Middle Teachers’ Basic Ability Improvement Project of Guangxi [grant number KY2016YB453].

Notes on contributors

Min Zhong

Min Zhong is mainly engaged in research in these fields: metamaterials, graphene, Dirac semimetal, weir semimetal, phase change materials, gas sensors, liquid sensors and biosensors.