Abstract
We present the design of a metasurface-based, cross-polarization converter as a sensor for label-free detection of cancerous cells in the terahertz band. The device is designed to work on the principle of refractive index (RI) sensing wherein the frequency shift of the maximum polarization conversion peak in the presence of the target analyte is measured. This shift is proportional to the RI difference between healthy and cancerous cells thereby enabling classification with high sensitivity. Our metasurface is designed to support two resonances which significantly reduces the measurement errors, thereby increasing the detection accuracy. We report sensitivities of 155 GHz/RIU and 350 GHz/RIU at the first and second resonant frequencies respectively. The proposed structure is simulated using a finite element method and validated with an equivalent circuit model.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
