Multiperiodic Photonic Crystals for Ultrasensitive Temperature Monitoring and Polarization Switching

• Published in: IEEE sensors journal Vol. 22; no. 23; pp. 22428 - 22437
• Main Authors: Panyaev, Ivan S., Sannikov, Dmitry G., Dadoenkova, Yuliya S., Dadoenkova, Nataliya N.
• Format: Journal Article
• Language: English
• Published: New York The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 01.12.2022
• Subjects: Dielectrics; Electromagnetic radiation; Energy distribution; Incidence angle; Optical properties; Photonic band gaps; Photonic crystals; Polarization; Temperature effects; Temperature sensors; Thermal expansion
• ISSN: 1530-437X; 1558-1748
• DOI: 10.1109/JSEN.2022.3217117

We study the influence of thermal expansion and thermo-optic effect on optical properties of finite 1-D three-periodic photonic crystals (PCs) of structure [(ab)[Formula Omitted](cd)[Formula Omitted]][Formula Omitted] composed of four different nonmagnetic dielectric materials [Formula Omitted], [Formula Omitted], [Formula Omitted], and [Formula Omitted]. We calculate temperature dependencies and incidence angle dependencies of the transmittivity of TE- and TM-polarized electromagnetic waves, as well as the distribution of energy within these structures. The optimal adjustment of PC bandgap centers for obtaining the desired transmission characteristics of the temperature-governed photonic bandgap structures is found, and the peculiarities of the energy distributions inside the photonic system are investigated. We propose a sensitive thermal polarization TE/TM switch as well as angular and temperature sensors working at the intraband-mode frequencies exploiting temperature effects.