| DOI | Resolve DOI: https://doi.org/10.1103/PhysRevLett.112.113005 |
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| Author | Search for: Znakovskaya, I.; Search for: Spanner, M.1; Search for: De, S.; Search for: Li, H.; Search for: Ray, D.; Search for: Corkum, P.1; Search for: Litvinyuk, I. V.; Search for: Cocke, C. L.; Search for: Kling, M. F. |
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| Affiliation | - National Research Council of Canada. Security and Disruptive Technologies
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| Format | Text, Article |
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| Subject | Depletion mechanism; Field-free orientation; Hyper-polarizability; Laser intensities; Measurements of; Molecular ionization; Nonperturbative; Theoretical calculations; Ionization; Molecules; Molecular orientation |
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| Abstract | The transition between two distinct mechanisms for the laser-induced field-free orientation of CO molecules is observed via measurements of orientation revival times and subsequent comparison to theoretical calculations. In the first mechanism, which we find responsible for the orientation of CO up to peak intensities of 8×1013 W/cm2, the molecules are impulsively oriented through the hyperpolarizability interaction. At higher intensities, asymmetric depletion through orientation-selective ionization is the dominant orienting mechanism. In addition to the clear identification of the two regimes of orientation, we propose that careful measurements of the onset of the orientation depletion mechanism as a function of the laser intensity will provide a relatively simple route to calibrating absolute rates of nonperturbative strong-field molecular ionization. © 2014 American Physical Society. |
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| Publication date | 2014 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 21272275 |
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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 | ff2e08c1-30f7-4d2b-a901-d304334a4433 |
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| Record created | 2014-07-23 |
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| Record modified | 2020-04-22 |
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