Raman linewidth measurements using time-resolved hybrid picosecond/nanosecond rotational CARS
(2015) In Optics Letters 40(24). p.5718-5721- Abstract
- We report an innovative approach for time-domain measurements of S-branch Raman linewidths using hybrid picosecond/nanosecond pure-rotational coherent anti-Stokes Raman spectroscopy (RCARS). The Raman coherences are created by two picosecond excitation pulses and are probed using a narrow-band nanosecond pulse at 532 nm. The generated RCARS signal contains the entire coherence decay in a single pulse. By extracting the decay times of the individual transitions, the J-dependent Raman linewidths can be calculated. Self-broadened S-branch linewidths for nitrogen and oxygen at 293 K and ambient pressure are in good agreement with previous time-domain measurements. Experimental considerations of the approach are discussed along with its merits... (More)
- We report an innovative approach for time-domain measurements of S-branch Raman linewidths using hybrid picosecond/nanosecond pure-rotational coherent anti-Stokes Raman spectroscopy (RCARS). The Raman coherences are created by two picosecond excitation pulses and are probed using a narrow-band nanosecond pulse at 532 nm. The generated RCARS signal contains the entire coherence decay in a single pulse. By extracting the decay times of the individual transitions, the J-dependent Raman linewidths can be calculated. Self-broadened S-branch linewidths for nitrogen and oxygen at 293 K and ambient pressure are in good agreement with previous time-domain measurements. Experimental considerations of the approach are discussed along with its merits and limitations. The approach can be extended to a wide range of pressures and temperatures and has potential for simultaneous single-shot thermometry and linewidth determination. (C) 2015 Optical Society of America (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/8548832
- author
- Nordström, Emil LU ; Hosseinnia, Ali LU ; Brackmann, Christian LU ; Bood, Joakim LU and Bengtsson, Per-Erik LU
- organization
- publishing date
- 2015
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Optics Letters
- volume
- 40
- issue
- 24
- pages
- 5718 - 5721
- publisher
- Optical Society of America
- external identifiers
-
- wos:000366681600006
- scopus:84956606760
- ISSN
- 0146-9592
- DOI
- 10.1364/OL.40.005718
- language
- English
- LU publication?
- yes
- id
- e8211d2f-ecb8-4a8a-adfd-57c30b28f67e (old id 8548832)
- date added to LUP
- 2016-04-01 13:50:00
- date last changed
- 2022-04-21 23:54:10
@article{e8211d2f-ecb8-4a8a-adfd-57c30b28f67e, abstract = {{We report an innovative approach for time-domain measurements of S-branch Raman linewidths using hybrid picosecond/nanosecond pure-rotational coherent anti-Stokes Raman spectroscopy (RCARS). The Raman coherences are created by two picosecond excitation pulses and are probed using a narrow-band nanosecond pulse at 532 nm. The generated RCARS signal contains the entire coherence decay in a single pulse. By extracting the decay times of the individual transitions, the J-dependent Raman linewidths can be calculated. Self-broadened S-branch linewidths for nitrogen and oxygen at 293 K and ambient pressure are in good agreement with previous time-domain measurements. Experimental considerations of the approach are discussed along with its merits and limitations. The approach can be extended to a wide range of pressures and temperatures and has potential for simultaneous single-shot thermometry and linewidth determination. (C) 2015 Optical Society of America}}, author = {{Nordström, Emil and Hosseinnia, Ali and Brackmann, Christian and Bood, Joakim and Bengtsson, Per-Erik}}, issn = {{0146-9592}}, language = {{eng}}, number = {{24}}, pages = {{5718--5721}}, publisher = {{Optical Society of America}}, series = {{Optics Letters}}, title = {{Raman linewidth measurements using time-resolved hybrid picosecond/nanosecond rotational CARS}}, url = {{http://dx.doi.org/10.1364/OL.40.005718}}, doi = {{10.1364/OL.40.005718}}, volume = {{40}}, year = {{2015}}, }