研究目的
Studying the sensing parameters of Bragg ?ber waveguides with a defect layer in the cladding region for bio-sensing and thickness monitoring applications.
研究成果
The study demonstrates that Bragg ?ber waveguides with defect layers can enhance sensing parameters such as detection accuracy and overall performance. High refractive index contrast cladding waveguides show larger intensity shifts than low contrast ones, but require fewer unit cells. The presence of a defect layer reduces the FWHM of the photonic bandgap, improving sensor performance.
研究不足
The study is theoretical and does not include experimental validation. The performance of the sensors is limited by propagation losses, which can be affected by cladding layer contrast.
1：Experimental Design and Method Selection:
The study involves theoretical analysis of Bragg ?ber waveguides with defect layers using transfer matrix method and Hankel formalism.
2：Sample Selection and Data Sources:
The waveguides consist of a liquid-core surrounded by alternate high and low refractive index claddings.
3：List of Experimental Equipment and Materials:
Materials include Arsenic triselenide (As2Se3), Poly Ether Imide (PEI), Polystyrene (PS), and poly metha methyl acrylate (PMMA).
4：Experimental Procedures and Operational Workflow:
The transmittance spectra of the proposed Bragg waveguide sensor are plotted and analyzed.
5：Data Analysis Methods:
The sensitivity, detection accuracy, and quality parameter of the sensors are calculated based on the transmittance spectra.
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