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

Jesper Borggren, Iain S. Burns, Anna-Lena Sahlberg, Marcus Aldén, Zhongshan Li

Research output: Contribution to journalArticle

10 Citations (Scopus)

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 laminar flat flame.
LanguageEnglish
Article number58
Number of pages8
JournalApplied Physics B: Lasers and Optics
Volume122
Issue number3
DOIs
Publication statusPublished - 11 Mar 2016

Fingerprint

inoculation
indium
flames
low pressure
semiconductor lasers
fluorescence
equivalence
temperature
high power lasers
atoms
temperature measurement
pulsed lasers
methane
spatial resolution
air
excitation

Keywords

  • TMIn seeding
  • two-line atomic fluorescence
  • temperature
  • low pressure flame
  • diode lasers
  • imaging

Cite this

@article{2c2b8996817d408cb3620328eedc8c23,
title = "Temperature imaging in low pressure flames using diode laser two-line atomic fluorescence employing a novel indium seeding technique",
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 laminar flat flame.",
keywords = "TMIn seeding, two-line atomic fluorescence, temperature, low pressure flame, diode lasers, imaging",
author = "Jesper Borggren and Burns, {Iain S.} and Anna-Lena Sahlberg and Marcus Ald{\'e}n and Zhongshan Li",
year = "2016",
month = "3",
day = "11",
doi = "10.1007/s00340-016-6329-8",
language = "English",
volume = "122",
journal = "Applied Physics B: Lasers and Optics",
issn = "0946-2171",
number = "3",

}

Temperature imaging in low pressure flames using diode laser two-line atomic fluorescence employing a novel indium seeding technique. / Borggren, Jesper; Burns, Iain S.; Sahlberg, Anna-Lena; Aldén, Marcus; Li, Zhongshan.

In: Applied Physics B: Lasers and Optics, Vol. 122, No. 3, 58, 11.03.2016.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Temperature imaging in low pressure flames using diode laser two-line atomic fluorescence employing a novel indium seeding technique

AU - Borggren, Jesper

AU - Burns, Iain S.

AU - Sahlberg, Anna-Lena

AU - Aldén, Marcus

AU - Li, Zhongshan

PY - 2016/3/11

Y1 - 2016/3/11

N2 - 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.

AB - 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.

KW - TMIn seeding

KW - two-line atomic fluorescence

KW - temperature

KW - low pressure flame

KW - diode lasers

KW - imaging

UR - http://link.springer.com/journal/volumesAndIssues/340

U2 - 10.1007/s00340-016-6329-8

DO - 10.1007/s00340-016-6329-8

M3 - Article

VL - 122

JO - Applied Physics B: Lasers and Optics

T2 - Applied Physics B: Lasers and Optics

JF - Applied Physics B: Lasers and Optics

SN - 0946-2171

IS - 3

M1 - 58

ER -