Journal
JOURNAL OF THEORETICAL AND APPLIED PHYSICS
Volume 12, Issue 4, Pages 293-298Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s40094-018-0308-x
Keywords
Ternary photonic crystal; Temperature sensor; Polymers
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Recently, one-dimensional periodic ternary photonic crystals have shown outstanding properties when compared to one-dimensional periodic binary photonic crystals. In this work, a ternary photonic crystal is proposed as a temperature sensor. The structure of the ternary photonic structure is considered Si/polymer/SiO2. The transmission spectra of the proposed ternary photonic structure are studied for different temperatures. It is observed that as the temperature increases, the transmission peak shifts toward higher wavelengths due to thermo-optic and thermal expansion coefficients of the polymer. It is found that the temperature-sensitive transmission peak shift is considerably enhanced due to the insertion of the polymer layer between Si and SiO2 to constitute a ternary photonic crystal.
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