High-Performance Temperature Sensor Based on One-dimensional Pyroelectric Photonic Crystals Comprising Tamm/Fano Resonan
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High-Performance Temperature Sensor Based on One-dimensional Pyroelectric Photonic Crystals Comprising Tamm/Fano Resonances Ashour M. Ahmed 1
&
Hussein A. Elsayed 1 & Ahmed Mehaney 1
Received: 25 June 2020 / Accepted: 21 October 2020 # Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract This research demonstrates a high-performance temperature sensor based on the one-dimensional photonic crystal. The main idea of our sensing procedure is essentially depending on the pyroelectric effect, Tamm plasmon resonance, and Fano resonance. The designed sensor is configured as prism/Au/[LiNbO3/air]N/SiO2. The inclusion of a thin layer of Au leads to the appearance of Tamm and Fano resonances. The novel thermal characteristics of LiNbO3 could have a significant effect on the position of these resonant modes. Thus, the shift in the position of the resonant mode due to temperature variations plays a fundamental role in the sensing process. The numerical results were performed based on the optimization procedure of the different parameters to investigate the highest possible performance. Therefore, the optimized sensor provides a higher sensitivity (3.035 nm/K) than many previously reported data. Keywords Tamm resonance . Fano resonance . Temperature sensor . Photonic crystals . Pyroelectric effect . Sensitivity
Introduction Nowadays, the research in the nanoscale regime received significant attention for the designs of many devices in the field of optics. In this regard, new artificial multilayer structures named photonic crystals (PCs) become of interest from both theoretical and experimental verifications. Due to the periodicity of refractive indices among these structures, the control of the electromagnetic waves is expected [1, 2]. Upon this strategy, PCs could be designed and fabricated in one, two, or three dimensions. Hence, the dominance on the propagation of the electromagnetic waves could be across some stop bands of frequency regions named photonic bandgaps (PBGs) [3, 4]. In addition, many reports have investigated the trapping of light of a specified frequency through these PBGs as a result of breaking the structure periodicity [5–7]. Walking over PC approach, many reports devoted the attention toward the interaction of acoustic, elastic, and thermal waves with periodic structures [8–12].
* Ashour M. Ahmed [email protected]; [email protected] 1
Physics Department, Faculty of Science, Beni-Suef University, Beni-Suef 62512, Egypt
Recently, there are significant contributions of PCs toward biomedical, fluid, and temperature sensors [13, 14]. Such contribution could be due to the high sensitivity, accuracy, and stability of PC-based sensors. In particular, PC temperature sensors received wide attention due to the material stability along wide ranges of temperature variations and the absence of any electronic components [15, 16]. However, such types of PC sensors could suffer from a significant low sensitivity [14, 17]. This problem captured the attention of many res
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