Ultra-High Sensitivity Methane Gas Sensor Based on Cryptophane-A Thin Film Depositing in Double D-Shaped Photonic Crystal Fiber Using the Vernier Effect.

Sensors (Basel) · 2024 · PMC11679442 · PMID 39771867

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a decreasing trendno p-value reported

The absolute value of the birefringence difference between the X-direction and Y-direction polarizing film changes with the concentration of methane gas in the environment under different wavelength conditions, showing a decreasing trend.

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