Research on characteristics of embedded resonator sensor based on PtS2

• Autorzy: Li Xin , Li Xieyuan , Zhang Haitao , Chen Shuang , Liu Shurong , Li Yang

Identyfikatory

DOI

10.37190/oa230204

• Języki publikacji: EN

Abstrakty

EN

An embedded microring resonator model using PtS₂ as the core layer was designed and optimized for sensing. The inner layer is made of PtS₂, and SiO₂ and Si₃N₄ are used as cladding. The overall structure is Si₃N₄-SiO₂-PtS₂-SiO₂-Si₃N₄. Field strength distribution of longitudinal section of single straight waveguide and the longitudinal section of coupling part of straight and annular waveguides are simulated according to the coupled-mode theory. The transfer matrix method is used to analyze characteristics between the length of the U-shaped feedback waveguide and the circumference of microring and the change of attenuation factor and coupling coefficient on the output spectrum. The simulation results showed that the embedded microring resonator with PtS₂ as the core presents excellent optical properties. The resonance depth is more than –50 dB, and the sensitivity can reach 1806.61 dB/RIU. When the resonance wavelength is 1550.86 nm and the self-coupling coefficient is 0.9849. The corresponding detection limit is about 1.66056×10^–7 dB/RIU, and the quality factor is 2.8848×10^–5 under the measurement system with a signal-to-noise ratio of 30 dB. Compared with the traditional single microring structure, the proposed microring presents a higher free spectral range and more suitable for the fabrication of high-sensitivity, low-detection limit, and large-measurement range sensors.

Słowa kluczowe

EN

embedded; microring resonator; U-shaped feedback waveguide; PtS2 core layer

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Optica Applicata
• Rocznik: 2023
• Tom: Vol. 53, nr 2
• Strony: 213--226
• Opis fizyczny: Bibliogr. 20 poz., rys.

Twórcy

autor

Li Xin

• School of Mathematics and Information Technology, Hebei Normal University of Science & Technology, Qinhuangdao, 066004, China

autor

Li Xieyuan

• School of Mathematics and Information Technology, Hebei Normal University of Science & Technology, Qinhuangdao, 066004, China

autor

Zhang Haitao

• School of Mathematics and Information Technology, Hebei Normal University of Science & Technology, Qinhuangdao, 066004, China

autor

Chen Shuang

• School of Mathematics and Information Technology, Hebei Normal University of Science & Technology, Qinhuangdao, 066004, China

autor

Liu Shurong

• School of Mathematics and Information Technology, Hebei Normal University of Science & Technology, Qinhuangdao, 066004, China

autor

Li Yang

• School of Mathematics and Information Technology, Hebei Normal University of Science & Technology, Qinhuangdao, 066004, China

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).