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Temperature imaging in low-pressure flames using diode laser two-line atomic fluorescence employing a novel indium seeding technique

Borggren, Jesper LU ; Burns, Iain S.; Sahlberg, Anna Lena LU ; Aldén, Marcus LU and Li, Zhongshan LU (2016) In Applied Physics B 122(3).
Abstract

The use of diode lasers for spatially resolved temperature imaging is demonstrated in low-pressure premixed methane–air flames using two-line atomic fluorescence of seeded indium atoms. This work features the advantages of using compact diode lasers as the excitation sources with the benefits of two-dimensional planar imaging, which is normally only performed with high-power pulsed lasers. A versatile and reliable seeding technique with minimal impact on flame properties is used to introduce indium atoms into the combustion environment for a wide range of flame equivalence ratios. A spatial resolution of around 210 µm for this calibration-free thermometry technique is achieved for three equivalence ratios at a pressure of 50 mbar in a... (More)

The use of diode lasers for spatially resolved temperature imaging is demonstrated in low-pressure premixed methane–air flames using two-line atomic fluorescence of seeded indium atoms. This work features the advantages of using compact diode lasers as the excitation sources with the benefits of two-dimensional planar imaging, which is normally only performed with high-power pulsed lasers. A versatile and reliable seeding technique with minimal impact on flame properties is used to introduce indium atoms into the combustion environment for a wide range of flame equivalence ratios. A spatial resolution of around 210 µm for this calibration-free thermometry technique is achieved for three equivalence ratios at a pressure of 50 mbar in a laminar flat flame.

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Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Applied Physics B
volume
122
issue
3
publisher
Springer
external identifiers
  • scopus:84961203809
  • wos:000372282600013
ISSN
0946-2171
DOI
10.1007/s00340-016-6329-8
language
English
LU publication?
yes
id
5b30fef4-ce06-4b94-9ee9-fccf8137e021
date added to LUP
2016-09-20 07:40:15
date last changed
2017-04-23 04:53:12
@article{5b30fef4-ce06-4b94-9ee9-fccf8137e021,
  abstract     = {<p>The use of diode lasers for spatially resolved temperature imaging is demonstrated in low-pressure premixed methane–air flames using two-line atomic fluorescence of seeded indium atoms. This work features the advantages of using compact diode lasers as the excitation sources with the benefits of two-dimensional planar imaging, which is normally only performed with high-power pulsed lasers. A versatile and reliable seeding technique with minimal impact on flame properties is used to introduce indium atoms into the combustion environment for a wide range of flame equivalence ratios. A spatial resolution of around 210 µm for this calibration-free thermometry technique is achieved for three equivalence ratios at a pressure of 50 mbar in a laminar flat flame.</p>},
  articleno    = {58},
  author       = {Borggren, Jesper and Burns, Iain S. and Sahlberg, Anna Lena and Aldén, Marcus and Li, Zhongshan},
  issn         = {0946-2171},
  language     = {eng},
  month        = {03},
  number       = {3},
  publisher    = {Springer},
  series       = {Applied Physics B},
  title        = {Temperature imaging in low-pressure flames using diode laser two-line atomic fluorescence employing a novel indium seeding technique},
  url          = {http://dx.doi.org/10.1007/s00340-016-6329-8},
  volume       = {122},
  year         = {2016},
}