Three dimensional alignment of molecules using elliptically polarized laser fields
We demonstrate, theoretically and experimentally, that an intense, elliptically polarized, nonresonant laser field can simultaneously force all three axes of a molecule to align along given axes fixed in space, thus inhibiting the free rotation in all three Euler angles. Theoretically, the effect is...
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Veröffentlicht in: | Physical review letters 2000-09, Vol.85 (12), p.2470-2473 |
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creator | Larsen, JJ Hald, K Bjerre, N Stapelfeldt, H Seideman, T |
description | We demonstrate, theoretically and experimentally, that an intense, elliptically polarized, nonresonant laser field can simultaneously force all three axes of a molecule to align along given axes fixed in space, thus inhibiting the free rotation in all three Euler angles. Theoretically, the effect is illustrated through time dependent quantum mechanical calculations. Experimentally, 3, 4-dibromothiophene molecules are aligned with a nanosecond laser pulse. The alignment is probed by 2D ion imaging of the fragments from a 20 fs laser pulse induced Coulomb explosion. |
doi_str_mv | 10.1103/physrevlett.85.2470 |
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title | Three dimensional alignment of molecules using elliptically polarized laser fields |
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