Time-domain measurements of S-branch N-2-N-2 Raman linewidths using picosecond pure rotational coherent anti-Stokes Raman spectroscopy
(2012) In Applied Physics B 108(2). p.419-426- Abstract
- Time-resolved dual-broadband picosecond pure rotational CARS has been applied to measure self-broadened S-branch N-2-N-2 Raman linewidths in the temperature range 294-1466 K. The coherence decays were detected directly in the time domain by following the J-dependent CARS signal decay as a function of probe delay. The rotational Raman N-2-N-2 linewidths were derived from these time-dependent decays and evaluated for thermometric accuracy. Comparisons were made to the energy-corrected sudden (ECS) and modified exponential gap (MEG) dynamical scaling laws, and the results were used to quantify the sensitivity of nanosecond rotational CARS thermometry to the linewidth model employed. The uncertainty based on the linewidth model used in pure... (More)
- Time-resolved dual-broadband picosecond pure rotational CARS has been applied to measure self-broadened S-branch N-2-N-2 Raman linewidths in the temperature range 294-1466 K. The coherence decays were detected directly in the time domain by following the J-dependent CARS signal decay as a function of probe delay. The rotational Raman N-2-N-2 linewidths were derived from these time-dependent decays and evaluated for thermometric accuracy. Comparisons were made to the energy-corrected sudden (ECS) and modified exponential gap (MEG) dynamical scaling laws, and the results were used to quantify the sensitivity of nanosecond rotational CARS thermometry to the linewidth model employed. The uncertainty based on the linewidth model used in pure N-2 was found to be 2 %. The merits and limitations of this rapid method for the determination of accurate Raman linewidths are discussed. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/3151905
- author
- Kliewer, C. J. ; Bohlin, Alexis LU ; Nordström, Emil LU ; Patterson, B. D. ; Bengtsson, Per-Erik LU and Settersten, T. B.
- organization
- publishing date
- 2012
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Applied Physics B
- volume
- 108
- issue
- 2
- pages
- 419 - 426
- publisher
- Springer
- external identifiers
-
- wos:000307883300022
- scopus:84868548386
- ISSN
- 0946-2171
- DOI
- 10.1007/s00340-012-5037-2
- language
- English
- LU publication?
- yes
- id
- ef119c66-23f1-4b68-8c4e-bb6e799bf59c (old id 3151905)
- date added to LUP
- 2016-04-01 11:09:19
- date last changed
- 2022-03-12 20:21:12
@article{ef119c66-23f1-4b68-8c4e-bb6e799bf59c, abstract = {{Time-resolved dual-broadband picosecond pure rotational CARS has been applied to measure self-broadened S-branch N-2-N-2 Raman linewidths in the temperature range 294-1466 K. The coherence decays were detected directly in the time domain by following the J-dependent CARS signal decay as a function of probe delay. The rotational Raman N-2-N-2 linewidths were derived from these time-dependent decays and evaluated for thermometric accuracy. Comparisons were made to the energy-corrected sudden (ECS) and modified exponential gap (MEG) dynamical scaling laws, and the results were used to quantify the sensitivity of nanosecond rotational CARS thermometry to the linewidth model employed. The uncertainty based on the linewidth model used in pure N-2 was found to be 2 %. The merits and limitations of this rapid method for the determination of accurate Raman linewidths are discussed.}}, author = {{Kliewer, C. J. and Bohlin, Alexis and Nordström, Emil and Patterson, B. D. and Bengtsson, Per-Erik and Settersten, T. B.}}, issn = {{0946-2171}}, language = {{eng}}, number = {{2}}, pages = {{419--426}}, publisher = {{Springer}}, series = {{Applied Physics B}}, title = {{Time-domain measurements of S-branch N-2-N-2 Raman linewidths using picosecond pure rotational coherent anti-Stokes Raman spectroscopy}}, url = {{http://dx.doi.org/10.1007/s00340-012-5037-2}}, doi = {{10.1007/s00340-012-5037-2}}, volume = {{108}}, year = {{2012}}, }