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<p>1-dimensional photonic crystal (PC) creates photonic band gap through its periodic structures which may be applicable in pressure, temperature, blood-component sensors as it is ultra-sensitive, flexible, and small. In this study, a theoretical approach is proposed and developed to enhance the thermal sensitivity of designed temperature sensor based on 1-D PC. Successive composed layers of titanium carbide (TiC) and zirconium dioxide (ZrO<sub>2</sub>) with a defect layer of MgO is proposed for designing the PC. The defect layer is introduced so that it affects the reflection and transmission ability for a particular wavelength as the refractive index is varied due to change in temperature. For the calculating the efficiency of the proposed sensor, we derive the transmission spectra of the proposed sensor by applying transfer matrix method. Due to the presence of the defect layer, the input wavelength of light enables to construct the transmission resonance peak that is localised very nearly to the input wavelength. The resonant peak position is shifted with changing temperature which enables the PC to act as a temperature sensor. The sensitivities are 0.004925&#xa0;nm/°C at 1600&#xa0;°C and 0.004941&#xa0;nm/°C at 1900&#xa0;°C. The change in wavelength is approximately 0.5&#xa0;nm with changing temperature 100&#xa0;°C in every steps. For a fixed temperature 1600&#xa0;°C, the FWHM is 93.3674&#xa0;nm at N = 3 and 0.66464&#xa0;nm when N = 14. After proper optimization, the result of the sensitivity parameters like quality factor, FWHM, signal to noise ratio values are ensuring that we can use the proposed design as a suitable temperature sensor in the high temperature region.</p>

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Photo-effective high temperature sensor employing 1-D photonic crystal comprising successive layers of (TiC/ZrO2)N/MgO/(TiC/ZrO2)N

  • 期刊论文

  • 发表日期：

    2025年9月4日

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  • Barnali Pal,
  • Saikat Santra,
  • Bibhatsu Kuiri,
  • Dipankar Biswas,
  • Santanu Mishra,
  • Ardhendu Sekhar Patra

摘要

1-dimensional photonic crystal (PC) creates photonic band gap through its periodic structures which may be applicable in pressure, temperature, blood-component sensors as it is ultra-sensitive, flexible, and small. In this study, a theoretical approach is proposed and developed to enhance the thermal sensitivity of designed temperature sensor based on 1-D PC. Successive composed layers of titanium carbide (TiC) and zirconium dioxide (ZrO2) with a defect layer of MgO is proposed for designing the PC. The defect layer is introduced so that it affects the reflection and transmission ability for a particular wavelength as the refractive index is varied due to change in temperature. For the calculating the efficiency of the proposed sensor, we derive the transmission spectra of the proposed sensor by applying transfer matrix method. Due to the presence of the defect layer, the input wavelength of light enables to construct the transmission resonance peak that is localised very nearly to the input wavelength. The resonant peak position is shifted with changing temperature which enables the PC to act as a temperature sensor. The sensitivities are 0.004925 nm/°C at 1600 °C and 0.004941 nm/°C at 1900 °C. The change in wavelength is approximately 0.5 nm with changing temperature 100 °C in every steps. For a fixed temperature 1600 °C, the FWHM is 93.3674 nm at N = 3 and 0.66464 nm when N = 14. After proper optimization, the result of the sensitivity parameters like quality factor, FWHM, signal to noise ratio values are ensuring that we can use the proposed design as a suitable temperature sensor in the high temperature region.