Laser excitation effects in lifetime-based high-speed phosphor thermometry
(2022) In Journal of Luminescence 250.- Abstract
With high-speed phosphor thermometry becoming more established follows the need for an improved understanding of laser excitation induced measurement errors. With this aim in mind, the impact of kHz laser excitation on the lifetime method was investigated for the phosphors Mg3FGeO6:Mn (MFG) and YVO4:Tm. The results showed that significant measurement errors can occur for both phosphors. The Maximum Entropy Method (MEM) was utilized to observe changes in the distribution of decay time with changes in laser excitation fluence and repetition rate. In the light of this analysis, it was concluded that the changes in measured decay time and therefore measured temperature cannot be primarily attributed to laser... (More)
With high-speed phosphor thermometry becoming more established follows the need for an improved understanding of laser excitation induced measurement errors. With this aim in mind, the impact of kHz laser excitation on the lifetime method was investigated for the phosphors Mg3FGeO6:Mn (MFG) and YVO4:Tm. The results showed that significant measurement errors can occur for both phosphors. The Maximum Entropy Method (MEM) was utilized to observe changes in the distribution of decay time with changes in laser excitation fluence and repetition rate. In the light of this analysis, it was concluded that the changes in measured decay time and therefore measured temperature cannot be primarily attributed to laser heating for either phosphor. The dominant source of changes in the measured decay time is ascribed to changes in the distributions of decay time with laser fluence for YVO4:Tm and laser irradiance for MFG.
(Less)
- author
- Feuk, Henrik
LU
; Nilsson, Sebastian LU and Richter, Mattias LU
- organization
- publishing date
- 2022
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of Luminescence
- volume
- 250
- article number
- 119106
- publisher
- Elsevier
- external identifiers
-
- scopus:85133458499
- ISSN
- 0022-2313
- DOI
- 10.1016/j.jlumin.2022.119106
- project
- HYdrogen as a FLEXible energy storage for a fully renewable European POWER system
- Advanced Laser Diagnostics for Discharge Plasma
- language
- English
- LU publication?
- yes
- id
- 9e23e4a0-2102-4e1c-a55c-ba16427a06f9
- date added to LUP
- 2022-09-05 14:13:43
- date last changed
- 2024-10-18 08:35:21
@article{9e23e4a0-2102-4e1c-a55c-ba16427a06f9, abstract = {{<p>With high-speed phosphor thermometry becoming more established follows the need for an improved understanding of laser excitation induced measurement errors. With this aim in mind, the impact of kHz laser excitation on the lifetime method was investigated for the phosphors Mg<sub>3</sub>FGeO<sub>6</sub>:Mn (MFG) and YVO<sub>4</sub>:Tm. The results showed that significant measurement errors can occur for both phosphors. The Maximum Entropy Method (MEM) was utilized to observe changes in the distribution of decay time with changes in laser excitation fluence and repetition rate. In the light of this analysis, it was concluded that the changes in measured decay time and therefore measured temperature cannot be primarily attributed to laser heating for either phosphor. The dominant source of changes in the measured decay time is ascribed to changes in the distributions of decay time with laser fluence for YVO<sub>4</sub>:Tm and laser irradiance for MFG.</p>}}, author = {{Feuk, Henrik and Nilsson, Sebastian and Richter, Mattias}}, issn = {{0022-2313}}, language = {{eng}}, publisher = {{Elsevier}}, series = {{Journal of Luminescence}}, title = {{Laser excitation effects in lifetime-based high-speed phosphor thermometry}}, url = {{http://dx.doi.org/10.1016/j.jlumin.2022.119106}}, doi = {{10.1016/j.jlumin.2022.119106}}, volume = {{250}}, year = {{2022}}, }