This paper presents a chemical sensor using a metamaterial absorber, which consisted of an Au Bottom layer, a FR4 substrate and a double-split-square-resonator (DSSR).The resonance generated by DSSR, which is extraordinarily sensitive to changes of the effective dielectric constant around the capacitive gap. The proposed sensor shows a great sensitivity and a high value of Q by a creative periodic DSSR structure and the Au Bottom layer. In addition, the relationship between the absorption frequency and chemical concentration is demonstrated by simulation.
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AN TERAHERTZ SENSOR USING METAMATERIAL ABSORBER FOR METHANOL SENSING
Published: 21 July 2017 by MDPI in The 7th International Multidisciplinary Conference on Optofluidics 2017 session Silicon photonics
Keywords: metamaterial, chemical sensor, methanol sensing