Abstract
We present an all-optical temperature sensor device made of an MXene V2C integrated runway-type microfiber knot resonator (MKR) for the first time. MXene V2C is coated on the surface of the microfiber by optical deposition. The experimental results show that the normalized temperature sensing efficiency is ∼1.65 dB °C-1 mm-1. The high sensing efficiency of the temperature sensor we proposed benefits from the efficient coupling of the highly photothermal material MXene and the runway-type resonator structure, which provides a better idea for the preparation of all-fiber sensor devices.
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