Field-free long-lived alignment of molecules in extreme rotational states

Abstract

We introduce a new optical tool - a "two-dimensional optical centrifuge", capable of aligning molecules in extreme rotational states. Unlike the conventional centrifuge, which confines the molecules in the plane of their rotation, its two-dimensional version aligns the molecules along a well-defined axis, similarly to the effect of a single linearly polarized laser pulse, but at a much higher level of rotational excitation. The increased robustness of ultra-high rotational states with respect to collisions results in a longer life time of the created alignment in dense media, offering new possibilities for studying and utilizing aligned molecular ensembles under ambient conditions.

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Cited by in corpus (6)

• Quantum control of molecular rotation
• Laser control of molecular rotation: Expanding the utility of an optical centrifuge
• Theoretical study of asymmetric superrotors: alignment and orientation
• Controlling the degree of rotational directionality in laser-induced molecular dynamics
• Controlling rotation in the molecular-frame with an optical centrifuge
• Ionization-induced Long-lasting Orientation of Symmetric-top Molecules