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Refractive index sensor based on terahertz epsilon negative metamaterial absorber for cancerous cell detection
P. MUKHERJEE1, S. BANERJEE1, S. PAHADSINGH1, W. BHOWMIK1, B. APPASANI1,* , Y. I. ABDULKARIM2
- School of Electronics Engineering, Kalinga Institute of Industrial Technology, Bhubaneswar 751024, India
- Medical Physics Department, College of Medicals & Applied Science, Charmo University, 46023, Chamchamal, Sulaimania, Iraq
The following paper proposes a novel design of a terahertz metamaterial absorber that can be used for refractive index sensing to detect cancerous cells. An epsilon negative metamaterial (ENG) with concentric octagonal ring resonators yields a near-perfect absorption rate of 99.19% at 3.076 THz. High values of the metrics like figure of merit (157.1 /RIU) and quality factor (307.1) indicate superior performance of the proposed design. The input parameters in the design are justified by parametric analysis. In addition, the absorption bands for different types of cells with distinctly different refractive indices are compared thus enabling the detection of cancerous cells..
Metamaterial absorber, Refractive index sensor, Terahertz, Cancer cell detection, Absorption, Sensitivity.
Submitted at: June 20, 2022
Accepted at: April 5, 2023
P. MUKHERJEE, S. BANERJEE, S. PAHADSINGH, W. BHOWMIK, B. APPASANI, Y. I. ABDULKARIM, Refractive index sensor based on terahertz epsilon negative metamaterial absorber for cancerous cell detection, Journal of Optoelectronics and Advanced Materials Vol. 25, Iss. 3-4, pp. 128-135 (2023)
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