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High Sensitivity and Ultra-High-Quality Factor for an All-Optical Temperature Sensor Based on Photonic Crystal Technology


Affiliations
1 Telecommunication and Digital Signal Processing Laboratory, Faculty of Electrical Engineering, Department of Telecommunications, University Djillali Liabes, Sidi-Bel-Abbes 22000, Algeria
 

In our work, we propose a novel temperature sensor design based on a Two-Dimensional (2D) photonic crystal resonant cavity structure designed to detect and monitor temperature under very harsh environmental conditions from 0&#176C to 500&#176C. The sensitivity of the proposed structure is 109.8 pm/&#176C, an ultra-high quality factor, high transmission efficiency and ultra-compact size. The characteristics of the proposed sensor under different temperatures are simulated using the Plane Wave Expansion (PWE) method and Finite Difference Time Domain (FDTD) method to calculate, respectively, the Photonic Band Gap (PBG) and transmission efficiency. The results obtained show that the wavelength of the resonant cavity increases linearly with increasing temperature. Our sensor is suitable for applications based on nanotechnology.


Keywords

Resonant cavities; Sensitivity; Photonic crystal; PWE method; FDTD method; Quality factor
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  • High Sensitivity and Ultra-High-Quality Factor for an All-Optical Temperature Sensor Based on Photonic Crystal Technology

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Authors

Kouddad Elhachemi
Telecommunication and Digital Signal Processing Laboratory, Faculty of Electrical Engineering, Department of Telecommunications, University Djillali Liabes, Sidi-Bel-Abbes 22000, Algeria
Dekkiche Leila
Telecommunication and Digital Signal Processing Laboratory, Faculty of Electrical Engineering, Department of Telecommunications, University Djillali Liabes, Sidi-Bel-Abbes 22000, Algeria
Naoum Rafah
Telecommunication and Digital Signal Processing Laboratory, Faculty of Electrical Engineering, Department of Telecommunications, University Djillali Liabes, Sidi-Bel-Abbes 22000, Algeria

Abstract


In our work, we propose a novel temperature sensor design based on a Two-Dimensional (2D) photonic crystal resonant cavity structure designed to detect and monitor temperature under very harsh environmental conditions from 0&#176C to 500&#176C. The sensitivity of the proposed structure is 109.8 pm/&#176C, an ultra-high quality factor, high transmission efficiency and ultra-compact size. The characteristics of the proposed sensor under different temperatures are simulated using the Plane Wave Expansion (PWE) method and Finite Difference Time Domain (FDTD) method to calculate, respectively, the Photonic Band Gap (PBG) and transmission efficiency. The results obtained show that the wavelength of the resonant cavity increases linearly with increasing temperature. Our sensor is suitable for applications based on nanotechnology.


Keywords


Resonant cavities; Sensitivity; Photonic crystal; PWE method; FDTD method; Quality factor

References