DOI | Resolve DOI: https://doi.org/10.1126/science.1163077 |
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Author | Search for: Li, Wen; Search for: Zhou, Xibin; Search for: Lock, Robynne; Search for: Patchkovskii, Serguei1; Search for: Stolow, Albert1; Search for: Kapteyn, Henry C.; Search for: Murnane, Margaret M. |
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Affiliation | - National Research Council of Canada. NRC Steacie Institute for Molecular Sciences
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Format | Text, Article |
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Abstract | The attosecond time-scale electron-recollision process that underlies high harmonic generation has uncovered extremely rapid electronic dynamics in atoms and diatomics. We showed that high harmonic generation can reveal coupled electronic and nuclear dynamics in polyatomic molecules. By exciting large amplitude vibrations in dinitrogen tetraoxide, we showed that tunnel ionization accesses the ground state of the ion at the outer turning point of the vibration but populates the first excited state at the inner turning point. This state-switching mechanism is manifested as bursts of high harmonic light that is emitted mostly at the outer turning point. Theoretical calculations attribute the large modulation to suppressed emission from the first excited state of the ion. More broadly, these results show that high harmonic generation and strong-field ionization in polyatomic molecules undergoing bonding or configurational changes involve the participation of multiple molecular orbitals. |
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Publication date | 2008-11-21 |
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In | |
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Language | English |
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Peer reviewed | Yes |
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NPARC number | 21277112 |
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Export citation | Export as RIS |
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Report a correction | Report a correction (opens in a new tab) |
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Record identifier | b51703f0-2977-4fe1-9c56-37c6dc1f3aa0 |
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Record created | 2015-12-02 |
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Record modified | 2020-04-15 |
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