Two-state wave packet for strong field-free molecular orientation
S Trippel, T Mullins, NLM Müller, JS Kienitz… - Physical review …, 2015 - APS
Physical review letters, 2015•APS
We demonstrate strong laser-field-free orientation of absolute-ground-state carbonyl sulfide
molecules. The molecules are oriented by the combination of a 485-ps-long nonresonant
laser pulse and a weak static electric field. The edges of the laser pulse create a coherent
superposition of two rotational states resulting in revivals of strong transient molecular
orientation after the laser pulse. The experimentally attained degree of orientation⟨ cos
θ⟩≈ 0.6 corresponds to the theoretical maximum for mixing of the two states. Switching off …
molecules. The molecules are oriented by the combination of a 485-ps-long nonresonant
laser pulse and a weak static electric field. The edges of the laser pulse create a coherent
superposition of two rotational states resulting in revivals of strong transient molecular
orientation after the laser pulse. The experimentally attained degree of orientation⟨ cos
θ⟩≈ 0.6 corresponds to the theoretical maximum for mixing of the two states. Switching off …
We demonstrate strong laser-field-free orientation of absolute-ground-state carbonyl sulfide molecules. The molecules are oriented by the combination of a 485-ps-long nonresonant laser pulse and a weak static electric field. The edges of the laser pulse create a coherent superposition of two rotational states resulting in revivals of strong transient molecular orientation after the laser pulse. The experimentally attained degree of orientation corresponds to the theoretical maximum for mixing of the two states. Switching off the dc field would provide the same orientation completely field free.
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