Laser excitation effects in lifetime-based high-speed phosphor thermometry

• DOI: 10.1016/j.jlumin.2022.119106
• Publication Date: 2022-07-04T15:16:18Z
• Authors: Henrik Feuk; Sebastian Nilsson; Mattias Richter
• Keywords: 02 engineering and technology; 0210 nano-technology

With high-speed phosphor thermometry becoming more established follows the need for an improved understanding of laser excitation induced measurement errors. this aim in mind, impact kHz on lifetime method was investigated phosphors Mg3FGeO6:Mn (MFG) and YVO4:Tm. The results showed that significant errors can occur both phosphors. Maximum Entropy Method (MEM) utilized to observe changes distribution decay time with fluence repetition rate. In light analysis, it concluded measured therefore temperature cannot be primarily attributed heating either phosphor. dominant source is ascribed distributions YVO4:Tm irradiance MFG.