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Proceedings 2017, 1(4), 531; doi:10.3390/proceedings1040531

Laser-Machined Split-Ring Resonators Embedded in a Polymer Matrix for Glaucoma Monitoring

1
Department of Electrical and Electronics Engineering, Bogazici University, Bebek 34342, Istanbul, Turkey
2
Center for Life Sciences and Technologies, Bogazici University, Kandilli 34684, Istanbul, Turkey
Presented at the Eurosensors 2017 Conference, Paris, France, 3–6 September 2017.
*
Author to whom correspondence should be addressed.
Published: 17 August 2017
Download PDF [873 KB, uploaded 12 October 2017]

Abstract

This paper presents a biosensor based on laser-machined metallic split-ring resonators embedded in hydrophilic polymer matrices for glaucoma monitoring. The inner and outer radii of the annular resonators are optimized using a finite-element model for the anterior part of the fibrous layer of human eye. The split-ring resonators are designed to have resonant frequencies in S-band. The devices are fabricated by laser cutting of 15 μm-thick aluminum sheets. Split-ring resonators are then embedded into photo-polymerized cross-linked hydrogels, which are used to prepare hydrophilic polymer matrices. The change in the resonance characteristics of the device is obtained with respect to the change in the curvature. The sensitivity of the sensor is calculated as −24.12 MHz/mm per unit change in the radius of the curvature.
Keywords: split ring resonators; glaucoma monitoring; hydrogels; hydrophilic polymer matrices split ring resonators; glaucoma monitoring; hydrogels; hydrophilic polymer matrices
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Calikoglu, A.; Dundar, G.; Yalcinkaya, A.D.; Torun, H. Laser-Machined Split-Ring Resonators Embedded in a Polymer Matrix for Glaucoma Monitoring. Proceedings 2017, 1, 531.

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