Highly Sensitive THz Refractive Index Sensor Based on Folded Split-Ring Metamaterial Graphene Resonators
نویسندگان
چکیده
A highly sensitive absorption-based sensor based on folded split-ring metamaterial graphene resonators (FSRMGRs) is designed, and its biomedical application in terahertz (THz) spectrum investigated. The has a nearly perfect absorption, with spectral absorption coefficient of 99.75% at 4 THz an average Q-factor 13.76. resonance peak frequency to the refractive index (RI) test medium (analyte), fairly high sensitivity 851 GHz/RIU been obtained. specifications can be tuned by external DC-bias voltage applied layer. According obtained results, developed absorber appears good candidate bio-sensing applications.
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ژورنال
عنوان ژورنال: Plasmonics
سال: 2021
ISSN: ['1557-1955', '1557-1963']
DOI: https://doi.org/10.1007/s11468-021-01512-8