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

Feuk, Henrik LU orcid ; Nilsson, Sebastian LU and Richter, Mattias LU (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.

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Please use this url to cite or link to this publication:
author
; and
organization
publishing date
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
2024-03-21 13:18:34
@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}},
}