MXene V2C-coated runway-type microfiber knot resonator for an all-optical temperature sensor

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 & SIM;1.65 dB & DEG;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.

Automated summary

We have presented an all-optical temperature sensor device integrated with MXene V2C and a microfiber knot resonator (MKR) for the first time. The experimental results have shown a normalized temperature sensing efficiency of 1.65 dB℃-1 mm(-1). The high sensing efficiency of our proposed temperature sensor is attributed to the efficient coupling of the highly photothermal material MXene and the runway-type resonator structure, providing a better understanding for the development of all-fiber sensor devices.