研究目的
Demonstrating lossy mode resonance (LMR) generation in optical fiber structures based on multimode fibers coated with aluminum-doped zinc oxide (AZO) films for sensing applications in the 1.55 μm wavelength range.
研究成果
LMR generation in optical fiber structures coated with AZO thin films was successfully demonstrated, showing high sensitivity to RI variations. The best sensitivity achieved was 1214.7 nm/RIU, indicating the potential of these structures for sensing applications.
研究不足
The study focuses on the 1.55 μm wavelength range and specific fiber structures, which may limit its applicability to other wavelengths or configurations. The sensitivity and performance may vary with different deposition conditions and materials.
1：Experimental Design and Method Selection:
The study involved the deposition of AZO thin films on optical fibers using radio frequency magnetron sputtering to generate LMR for sensing applications.
2：Sample Selection and Data Sources:
Multimode fibers coated with AZO films synthesized from metallic sputtering targets with different proportions of Zn:Al were used.
3：List of Experimental Equipment and Materials:
RF magnetron sputtering system, UV–vis and XPS spectroscopy for characterization, and an optical transmission configuration setup for investigating the LMR effect.
4：Experimental Procedures and Operational Workflow:
AZO films were deposited on fiber structures, characterized, and their optical response to RI variations was tested using IPA/glycerin solutions.
5：Data Analysis Methods:
The sensitivity of the fiber structures to RI variations was analyzed based on wavelength shifts of the resonance transmission notch.
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