Fluorescence thermometer based on luminescence imaging of garnet sensor

摘要

Red colored photoluminescence (PL) images have been observed from Cr doped garnet, Y3Al5O12 (YAG) sensor using a CCD camera system. PL image from YAG sensor increases linearly with temperature from 25 to 250 °C. Temperature can be measured using PL image from Cr doped YAG sensor. Image processing techniques, such as line scanning, histogram and integration of brightness are effective for two-dimensional fluorescence thermometer application.