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Materials 2019, 12(1), 175; https://doi.org/10.3390/ma12010175

Design of an Integrated Optics Sensor Structure Based on Diamond Waveguide for Hemoglobin Property Detection

Department of Optoelectronics, Faculty of Electrical Engineering, Silesian University of Technology, 44-100 Gliwice, Poland
Received: 30 November 2018 / Revised: 23 December 2018 / Accepted: 2 January 2019 / Published: 7 January 2019
(This article belongs to the Special Issue Design and Synthesis of Novel Optical Probes)
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Abstract

This manuscript presents a theoretical analysis of a diamond-based integrated optics structure for applications in biosensors. The geometrical, optical, and sensitivity properties of an integrated optical structure were theoretically analyzed and optimized for biosensor applications. The analysis focused on determining the waveguide properties, including the effective refractive index Neff as a function of refractive index nw and thickness dw of waveguide layer, refractive index of the hemoglobin cover layer ncH and substrate layer ns, homogeneous sensitivity dNeff/dncH, and modal field distribution of guided waveguide modes. The analysis was completed for two types of waveguide layer materials: undoped or boron-doped diamond films with or without the hemoglobin cover layer. The presented experimental results form a base for developing biosensor structures based on integrated optics for determining the properties of hemoglobin. View Full-Text
Keywords: integrated optics structures; diamond waveguide layer; hemoglobin biosensor integrated optics structures; diamond waveguide layer; hemoglobin biosensor
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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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Struk, P. Design of an Integrated Optics Sensor Structure Based on Diamond Waveguide for Hemoglobin Property Detection. Materials 2019, 12, 175.

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