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Saturation Dependence of Flame Thermometry by Mid-IR Degenerate Four Wave Mixing

Pedersen, Rasmus L. LU ; Sahlberg, Anna Lena LU ; Hot, Dina LU and Li, Zhongshan LU (2020) In Applied Spectroscopy
Abstract

It has previously been demonstrated that the ratio of the degenerate four wave mixing signal from two hot water line groups near 3231 cm–1 can be used for seedless flame temperature measurements. This paper presents an investigation of the impact of saturation effects on the measured signal intensity from each line group, as well as an estimation of the accuracy of the method. The saturation effects observed here would result in a large systematic error if they are not taken into account when using the degenerate four-wave mixing intensity of these water line groups to calculate the flame temperature.

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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
epub
subject
keywords
flame, infrared degenerate four-wave mixing, IR-DFWM, Saturation, thermometry, water
in
Applied Spectroscopy
publisher
Society for Applied Spectroscopy
external identifiers
  • scopus:85092190059
  • pmid:33021109
ISSN
0003-7028
DOI
10.1177/0003702820955186
language
English
LU publication?
yes
id
78e30dd3-05b8-46d7-a281-8b8e8f74fb9a
date added to LUP
2020-11-19 12:04:41
date last changed
2021-01-06 06:42:17
@article{78e30dd3-05b8-46d7-a281-8b8e8f74fb9a,
  abstract     = {<p>It has previously been demonstrated that the ratio of the degenerate four wave mixing signal from two hot water line groups near 3231 cm<sup>–1</sup> can be used for seedless flame temperature measurements. This paper presents an investigation of the impact of saturation effects on the measured signal intensity from each line group, as well as an estimation of the accuracy of the method. The saturation effects observed here would result in a large systematic error if they are not taken into account when using the degenerate four-wave mixing intensity of these water line groups to calculate the flame temperature.</p>},
  author       = {Pedersen, Rasmus L. and Sahlberg, Anna Lena and Hot, Dina and Li, Zhongshan},
  issn         = {0003-7028},
  language     = {eng},
  publisher    = {Society for Applied Spectroscopy},
  series       = {Applied Spectroscopy},
  title        = {Saturation Dependence of Flame Thermometry by Mid-IR Degenerate Four Wave Mixing},
  url          = {http://dx.doi.org/10.1177/0003702820955186},
  doi          = {10.1177/0003702820955186},
  year         = {2020},
}