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Measurement and ass...
Measurement and assignment of double-resonance transitions to the 8900-9100- cm-1 levels of methane
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- Foltynowicz, Aleksandra, 1981- (author)
- Umeå universitet,Institutionen för fysik
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- Rutkowski, Lucile (author)
- Université de Rennes, CNRS, IPR (Institut de Physique de Rennes), UMR 6251, Rennes, France
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- Silander, Isak, 1980- (author)
- Umeå universitet,Institutionen för fysik
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- Johansson, Alexandra C., 1987- (author)
- Umeå universitet,Institutionen för fysik
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- Silva de Oliveira, Vinicius (author)
- Umeå universitet,Institutionen för fysik
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- Axner, Ove (author)
- Umeå universitet,Institutionen för fysik
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- Soboń, Grzegorz (author)
- Laser and Fiber Electronics Group, Faculty of Electronics, Wrocław University of Science and Technology, Wroclaw, Poland
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- Martynkien, Tadeusz (author)
- Faculty of Fundamental Problems of Technology, Wrocław University of Science and Technology, Wroclaw, Poland
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- Mergo, Paweł (author)
- Laboratory of Optical Fiber Technology, Maria Curie-Sklodowska University, Lublin, Poland
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- Lehmann, Kevin K. (author)
- Departments of Chemistry and Physics, University of Virginia, VA, Charlottesville, United States
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(creator_code:org_t)
- American Physical Society, 2021
- 2021
- English.
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In: Physical Review A: covering atomic, molecular, and optical physics and quantum information. - : American Physical Society. - 2469-9926 .- 2469-9934. ; 103:2
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Abstract
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- Optical-optical double-resonance spectroscopy with a continuous wave pump and frequency comb probe allows measurement of sub-Doppler transitions to highly excited molecular states over a wide spectral range with high frequency accuracy. We report on assessment and characterization of sub-Doppler double-resonance transitions in methane measured using a 3.3-μm continuous wave optical parametric oscillator as a pump and a 1.67-μm frequency comb as a probe. The comb spectra were recorded using a Fourier transform spectrometer with comb-mode-limited resolution. With the pump tuned to nine different transitions in the ν3 fundamental band, we detected 36 ladder-type transitions to the 3ν3 overtone band region, and 18 V-type transitions to the 2ν3 overtone band. We describe in detail the experimental approach and the pump stabilization scheme, which currently limits the frequency accuracy of the measurement. We present the data analysis procedure used to extract the frequencies and intensities of the probe transitions for parallel and perpendicular relative pump-probe polarization. We compare the center frequencies and relative intensities of the ladder-type transitions to theoretical predictions from the TheoReTS and ExoMol line lists, demonstrating good agreement with TheoReTS.
Subject headings
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
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- ref (subject category)
- art (subject category)
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Foltynowicz, Ale ...
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Rutkowski, Lucil ...
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Silander, Isak, ...
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Johansson, Alexa ...
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Silva de Oliveir ...
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Axner, Ove
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Soboń, Grzegorz
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Martynkien, Tade ...
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Mergo, Paweł
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Lehmann, Kevin K ...
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Atom and Molecul ...
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Physical Review ...
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Umeå University