Single-shot coherent control of molecular rotation by fs/ns rotational coherent anti-Stokes Raman spectroscopy
(2022) In Optics Express 30(18). p.32204-32214- Abstract
We present a novel method, to our knowledge, to control the shape of the spectra using 2-beam hybrid femtosecond (fs)/nanosecond (ns) coherent anti-Stokes Raman scattering (RCARS). The method is demonstrated experimentally and theoretically by utilizing a species-selective excitation approach via a field-free molecular alignment as an illustrative example. Two non-resonant fs laser pulses with proper delay selectively create and then annihilate N2 resonances in a binary mixture with O2 molecules. The RCARS signal is simultaneously resolved in spectral and temporal domains within a single-shot acquisition. The method requires very low pulse energies for excitation, hence minimizing multiphoton ionization... (More)
We present a novel method, to our knowledge, to control the shape of the spectra using 2-beam hybrid femtosecond (fs)/nanosecond (ns) coherent anti-Stokes Raman scattering (RCARS). The method is demonstrated experimentally and theoretically by utilizing a species-selective excitation approach via a field-free molecular alignment as an illustrative example. Two non-resonant fs laser pulses with proper delay selectively create and then annihilate N2 resonances in a binary mixture with O2 molecules. The RCARS signal is simultaneously resolved in spectral and temporal domains within a single-shot acquisition. The method requires very low pulse energies for excitation, hence minimizing multiphoton ionization probability, allowing for coherent control at various temperatures and pressures, with spectroscopic applications in non-stationary and unpredictable reacting flows.
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- author
- Hosseinnia, Ali LU ; Raveesh, Meena LU ; Dominguez, Armand LU ; Ruchkina, Maria LU ; Linne, Mark LU and Bood, Joakim LU
- organization
- publishing date
- 2022-08-29
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Optics Express
- volume
- 30
- issue
- 18
- pages
- 11 pages
- publisher
- Optical Society of America
- external identifiers
-
- pmid:36242287
- scopus:85137647520
- ISSN
- 1094-4087
- DOI
- 10.1364/OE.459396
- language
- English
- LU publication?
- yes
- id
- f915b3f7-a1ec-4ddd-9fbe-a98fb8dc2bb3
- date added to LUP
- 2022-11-30 10:07:22
- date last changed
- 2024-04-16 14:23:36
@article{f915b3f7-a1ec-4ddd-9fbe-a98fb8dc2bb3, abstract = {{<p>We present a novel method, to our knowledge, to control the shape of the spectra using 2-beam hybrid femtosecond (fs)/nanosecond (ns) coherent anti-Stokes Raman scattering (RCARS). The method is demonstrated experimentally and theoretically by utilizing a species-selective excitation approach via a field-free molecular alignment as an illustrative example. Two non-resonant fs laser pulses with proper delay selectively create and then annihilate N<sub>2</sub> resonances in a binary mixture with O<sub>2</sub> molecules. The RCARS signal is simultaneously resolved in spectral and temporal domains within a single-shot acquisition. The method requires very low pulse energies for excitation, hence minimizing multiphoton ionization probability, allowing for coherent control at various temperatures and pressures, with spectroscopic applications in non-stationary and unpredictable reacting flows.</p>}}, author = {{Hosseinnia, Ali and Raveesh, Meena and Dominguez, Armand and Ruchkina, Maria and Linne, Mark and Bood, Joakim}}, issn = {{1094-4087}}, language = {{eng}}, month = {{08}}, number = {{18}}, pages = {{32204--32214}}, publisher = {{Optical Society of America}}, series = {{Optics Express}}, title = {{Single-shot coherent control of molecular rotation by fs/ns rotational coherent anti-Stokes Raman spectroscopy}}, url = {{http://dx.doi.org/10.1364/OE.459396}}, doi = {{10.1364/OE.459396}}, volume = {{30}}, year = {{2022}}, }