Thermography Using YVO₄:Dy³⁺

A proposed thermographic technique would exploit the unique fluorescence characteristics of yttrium vanadate doped with dysprosium (YVO4:Dy3+). The particular aspect of the fluorescence characteristics that would be exploited in this technique is the relative intensity of emitted light as a function of the temperature and of the wavelength of the light used to excite the fluorescence (see figure).