Investigation of laser-induced grating spectroscopy of O2 for accurate temperature measurements towards applications in harsh environments
(2021) In Journal of Raman Spectroscopy 52(9). p.1569-1581- Abstract
We present an in-depth investigation of laser-induced grating spectroscopy (LIGS) for temperature measurements in practical applications using a narrow-band dye laser with 760 nm wavelength and a pulse duration of 8 ns as the source for the pump beams creating the laser-induced grating. The pump laser wavelength was set to be either resonant with the (Formula presented.) transition from the (Formula presented.) band of O2 for generation of thermal LIGS or nonresonant for generation of purely electrostrictive LIGS. Signals were generated in ambient air as well as in high-pressure or high-temperature dry air mixtures. Pump laser irradiances up to 11 GW/cm2 were used, which resulted in strong electrostrictive... (More)
We present an in-depth investigation of laser-induced grating spectroscopy (LIGS) for temperature measurements in practical applications using a narrow-band dye laser with 760 nm wavelength and a pulse duration of 8 ns as the source for the pump beams creating the laser-induced grating. The pump laser wavelength was set to be either resonant with the (Formula presented.) transition from the (Formula presented.) band of O2 for generation of thermal LIGS or nonresonant for generation of purely electrostrictive LIGS. Signals were generated in ambient air as well as in high-pressure or high-temperature dry air mixtures. Pump laser irradiances up to 11 GW/cm2 were used, which resulted in strong electrostrictive contribution to the overall LIGS signals at atmospheric pressure, with a low thermal contribution due to the weak absorption by the singlet O2 (Formula presented.). The advantage and disadvantage of thermal or electrostrictive LIGS for temperature measurements are discussed, as well as potential applications in high-pressure environments. Furthermore, the precision of the temperature measurement is discussed by comparing different analysis methods.
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- author
- Hot, Dina LU ; Sahlberg, Anna Lena LU ; Alden, Marcus LU and Li, Zhongshan LU
- organization
- publishing date
- 2021
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- electrostrictive, LIGS, oxygen, temperature, thermal
- in
- Journal of Raman Spectroscopy
- volume
- 52
- issue
- 9
- pages
- 1569 - 1581
- publisher
- John Wiley & Sons Inc.
- external identifiers
-
- scopus:85102706744
- ISSN
- 0377-0486
- DOI
- 10.1002/jrs.6099
- language
- English
- LU publication?
- yes
- id
- 5716a67b-e293-4ac9-9f6e-b67c5ef68a04
- date added to LUP
- 2021-04-01 09:27:45
- date last changed
- 2022-06-03 16:25:35
@article{5716a67b-e293-4ac9-9f6e-b67c5ef68a04,
abstract = {{<p>We present an in-depth investigation of laser-induced grating spectroscopy (LIGS) for temperature measurements in practical applications using a narrow-band dye laser with 760 nm wavelength and a pulse duration of 8 ns as the source for the pump beams creating the laser-induced grating. The pump laser wavelength was set to be either resonant with the (Formula presented.) transition from the (Formula presented.) band of O<sub>2</sub> for generation of thermal LIGS or nonresonant for generation of purely electrostrictive LIGS. Signals were generated in ambient air as well as in high-pressure or high-temperature dry air mixtures. Pump laser irradiances up to 11 GW/cm<sup>2</sup> were used, which resulted in strong electrostrictive contribution to the overall LIGS signals at atmospheric pressure, with a low thermal contribution due to the weak absorption by the singlet O<sub>2</sub> (Formula presented.). The advantage and disadvantage of thermal or electrostrictive LIGS for temperature measurements are discussed, as well as potential applications in high-pressure environments. Furthermore, the precision of the temperature measurement is discussed by comparing different analysis methods.</p>}},
author = {{Hot, Dina and Sahlberg, Anna Lena and Alden, Marcus and Li, Zhongshan}},
issn = {{0377-0486}},
keywords = {{electrostrictive; LIGS; oxygen; temperature; thermal}},
language = {{eng}},
number = {{9}},
pages = {{1569--1581}},
publisher = {{John Wiley & Sons Inc.}},
series = {{Journal of Raman Spectroscopy}},
title = {{Investigation of laser-induced grating spectroscopy of O<sub>2</sub> for accurate temperature measurements towards applications in harsh environments}},
url = {{https://lup.lub.lu.se/search/files/119436651/J_Raman_Spectroscopy_2021_Hot_Investigation_of_laser_induced_grating_spectroscopy_of_O2_for_accurate_temperature.pdf}},
doi = {{10.1002/jrs.6099}},
volume = {{52}},
year = {{2021}},
}