研究目的
Detection of toxic chemical like hydrogen cyanide (HCN) in the terahertz range using hollow core photonic crystal fiber (PCF) based sensors.
研究成果
The proposed PCF-1 with octagonal airhole in the core provides higher relative sensitivity than PCF-2 with a circular air hole in the core, achieving a high relative sensitivity of 92.08% and trivial confinement loss of 5.2×10-7 cm-1 at 1.4 THz. The study demonstrates the potential of the proposed sensor for harmful chemical detection in the terahertz range.
研究不足
The study focuses on the terahertz range and specific designs of PCF sensors, which may limit its applicability to other frequency ranges or sensor designs.
1：Experimental Design and Method Selection:
The study proposes two different forms of PCF with hollow-core for chemical sensing applications, designed using COMSOL Multiphysics software and analyzed using MATLAB software.
2：Sample Selection and Data Sources:
The sensing element hydrogen cyanide is placed in the core area of the PCF.
3：List of Experimental Equipment and Materials:
COMSOL Multiphysics software for designing the proposed fibers, MATLAB software for graphical analysis.
4：Experimental Procedures and Operational Workflow:
The interaction of light with hydrogen cyanide in the core area for the PCF structure is analyzed, including the calculation of relative sensitivity, core power fraction, effective area, and confinement loss.
5：Data Analysis Methods:
The study uses graphical and numerical analysis to demonstrate various optical properties of the proposed designs.
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