Attosecond transient absorption spectroscopy of molecular nitrogen: Vibrational coherences in the b' 1Σ+u state
Abstract
Nuclear and electronic dynamics in a wavepacket comprising bound Rydberg and valence electronic states of nitrogen from 12 to 15 eV are investigated using attosecond transient absorption. Vibrational quantum beats with a fundamental period of 50 femtoseconds persist for a picosecond in the b′ 1Σ+u valence state. Multi-state calculations show that these coherences result primarily from near infrared-induced coupling between the inner and outer regions of the b′ 1Σ+u state potential and the dark a′′ 1Σ+g state. The excellent spectral and temporal resolution of this technique allows measurement of the anharmonicity of the b′ 1Σ+u potential directly from the observed quantum beats.
- Authors:
-
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); University of California, Berkeley, CA (United States)
- Aarhus University (Denmark)
- Publication Date:
- Research Org.:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division; National Science Foundation (NSF); USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1532259
- Alternate Identifier(s):
- OSTI ID: 1564439
- Grant/Contract Number:
- AC02-05CH11231
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Chemical Physics Letters
- Additional Journal Information:
- Journal Volume: 683; Journal Issue: C; Journal ID: ISSN 0009-2614
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Citation Formats
Warrick, Erika R., Bækhøj, Jens E., Cao, Wei, Fidler, Ashley P., Jensen, Frank, Madsen, Lars Bojer, Leone, Stephen R., and Neumark, Daniel M. Attosecond transient absorption spectroscopy of molecular nitrogen: Vibrational coherences in the b' 1Σ+u state. United States: N. p., 2017.
Web. doi:10.1016/j.cplett.2017.02.013.
Warrick, Erika R., Bækhøj, Jens E., Cao, Wei, Fidler, Ashley P., Jensen, Frank, Madsen, Lars Bojer, Leone, Stephen R., & Neumark, Daniel M. Attosecond transient absorption spectroscopy of molecular nitrogen: Vibrational coherences in the b' 1Σ+u state. United States. https://doi.org/10.1016/j.cplett.2017.02.013
Warrick, Erika R., Bækhøj, Jens E., Cao, Wei, Fidler, Ashley P., Jensen, Frank, Madsen, Lars Bojer, Leone, Stephen R., and Neumark, Daniel M. Thu .
"Attosecond transient absorption spectroscopy of molecular nitrogen: Vibrational coherences in the b' 1Σ+u state". United States. https://doi.org/10.1016/j.cplett.2017.02.013. https://www.osti.gov/servlets/purl/1532259.
@article{osti_1532259,
title = {Attosecond transient absorption spectroscopy of molecular nitrogen: Vibrational coherences in the b' 1Σ+u state},
author = {Warrick, Erika R. and Bækhøj, Jens E. and Cao, Wei and Fidler, Ashley P. and Jensen, Frank and Madsen, Lars Bojer and Leone, Stephen R. and Neumark, Daniel M.},
abstractNote = {Nuclear and electronic dynamics in a wavepacket comprising bound Rydberg and valence electronic states of nitrogen from 12 to 15 eV are investigated using attosecond transient absorption. Vibrational quantum beats with a fundamental period of 50 femtoseconds persist for a picosecond in the b′ 1Σ+u valence state. Multi-state calculations show that these coherences result primarily from near infrared-induced coupling between the inner and outer regions of the b′ 1Σ+u state potential and the dark a′′ 1Σ+g state. The excellent spectral and temporal resolution of this technique allows measurement of the anharmonicity of the b′ 1Σ+u potential directly from the observed quantum beats.},
doi = {10.1016/j.cplett.2017.02.013},
journal = {Chemical Physics Letters},
number = C,
volume = 683,
place = {United States},
year = {Thu Feb 09 00:00:00 EST 2017},
month = {Thu Feb 09 00:00:00 EST 2017}
}
Web of Science
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