Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

Strategies for formaldehyde detection in flames and engines using a single-mode Nd:YAG/OPO laser system

Brackmann, Christian LU ; Li, Zhongshan LU ; Rupinski, Martin ; Docquier, Nicolas ; Pengloan, Gaelle and Aldén, Marcus LU (2005) In Applied Spectroscopy 59(6). p.763-768
Abstract

This paper presents technical developments for the detection of formaldehyde (CH2O) using laser-induced fluorescence. The easily accessible third harmonic of the Nd:YAG laser at 355 nm was used for excitation of formaldehyde. In order to investigate potential background fluorescence, e.g., from large molecules such as polyaromatic hydrocarbons, special attention was paid to investigating the possibility of scanning the wavelength of a single-mode Nd: YAG laser under the gain profile, ∼3 cm-1, on and off resonance. Furthermore, a technique for simultaneous detection of formaldehyde and OH using one laser system is presented. The single-mode Nd: YAG laser at 355 nm in combination with an optical parametric oscillator... (More)

This paper presents technical developments for the detection of formaldehyde (CH2O) using laser-induced fluorescence. The easily accessible third harmonic of the Nd:YAG laser at 355 nm was used for excitation of formaldehyde. In order to investigate potential background fluorescence, e.g., from large molecules such as polyaromatic hydrocarbons, special attention was paid to investigating the possibility of scanning the wavelength of a single-mode Nd: YAG laser under the gain profile, ∼3 cm-1, on and off resonance. Furthermore, a technique for simultaneous detection of formaldehyde and OH using one laser system is presented. The single-mode Nd: YAG laser at 355 nm in combination with an optical parametric oscillator (OPO) laser tuned to 283 nm was used for simultaneous two-dimensional imaging of both species using one charge-coupled device (CCD) detector equipped with a dual filter image separator. The techniques are demonstrated with measurements in laboratory flames and the combined measurements are also demonstrated in an engine.

(Less)
Please use this url to cite or link to this publication:
author
; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Combustion diagnostics, Formaldehyde, Laser-induced fluorescence
in
Applied Spectroscopy
volume
59
issue
6
pages
6 pages
publisher
Society for Applied Spectroscopy
external identifiers
  • pmid:16053542
  • scopus:21244491543
ISSN
0003-7028
DOI
10.1366/0003702054280748
language
English
LU publication?
yes
id
a9ec1ced-18d3-4f53-b0db-9adb78455f13
date added to LUP
2022-03-04 08:25:52
date last changed
2024-04-21 05:29:20
@article{a9ec1ced-18d3-4f53-b0db-9adb78455f13,
  abstract     = {{<p>This paper presents technical developments for the detection of formaldehyde (CH<sub>2</sub>O) using laser-induced fluorescence. The easily accessible third harmonic of the Nd:YAG laser at 355 nm was used for excitation of formaldehyde. In order to investigate potential background fluorescence, e.g., from large molecules such as polyaromatic hydrocarbons, special attention was paid to investigating the possibility of scanning the wavelength of a single-mode Nd: YAG laser under the gain profile, ∼3 cm<sup>-1</sup>, on and off resonance. Furthermore, a technique for simultaneous detection of formaldehyde and OH using one laser system is presented. The single-mode Nd: YAG laser at 355 nm in combination with an optical parametric oscillator (OPO) laser tuned to 283 nm was used for simultaneous two-dimensional imaging of both species using one charge-coupled device (CCD) detector equipped with a dual filter image separator. The techniques are demonstrated with measurements in laboratory flames and the combined measurements are also demonstrated in an engine.</p>}},
  author       = {{Brackmann, Christian and Li, Zhongshan and Rupinski, Martin and Docquier, Nicolas and Pengloan, Gaelle and Aldén, Marcus}},
  issn         = {{0003-7028}},
  keywords     = {{Combustion diagnostics; Formaldehyde; Laser-induced fluorescence}},
  language     = {{eng}},
  number       = {{6}},
  pages        = {{763--768}},
  publisher    = {{Society for Applied Spectroscopy}},
  series       = {{Applied Spectroscopy}},
  title        = {{Strategies for formaldehyde detection in flames and engines using a single-mode Nd:YAG/OPO laser system}},
  url          = {{http://dx.doi.org/10.1366/0003702054280748}},
  doi          = {{10.1366/0003702054280748}},
  volume       = {{59}},
  year         = {{2005}},
}