Demonstration of improving the sensitivity of a fiber optic temperature sensor using the wavelength of maximum absorption of the lophine

• The lophine absorbance has a dependency as a function of temperature. • The lophine can use any optical source in the wavelength region UV-VIS-NIR. • Lophine absorption spectrum improves the sensitivity of the fiber sensor. In this work, a spectroscopy study of lophine was carried out and the absorption spectrum was found to be in the wavelength range of 290 to 375 nm. Furthermore, the absorbance dependence of lophine as a function of...