The manifestations of 'l-Doubling' in gas-phase rotational dynamics

• URL: http://arxiv.org/abs/2410.06752v1
• Date: Wed, 9 Oct 2024 10:32:26 GMT
• Title: The manifestations of 'l-Doubling' in gas-phase rotational dynamics
• Authors: Kfir Rutman Moshe, Dina Rosenberg, Inbar Sternbach, Sharly Fleischer,
• Abstract summary: The 'l-Doubling' phenomenon emanates from the coupling between molecular rotations and perpendicular vibrations (bending modes) in polyatomic molecules. Here we explore and unveil the ramifications of 'l-Doubling' to the coherent rotational dynamics of triatomic molecules at ambient temperatures and above. The observed 'l-Doubling' dynamics may be wrongly considered as collisional decay throughout the first few hundreds of picoseconds past excitation.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: The 'l-Doubling' phenomenon emanates from the coupling between molecular rotations and perpendicular vibrations (bending modes) in polyatomic molecules. This elusive phenomenon has been largely discarded in laser-induced molecular alignment. Here we explore and unveil the ramifications of 'l-Doubling' to the coherent rotational dynamics of triatomic molecules at ambient temperatures and above. The observed 'l-Doubling' dynamics may be wrongly considered as collisional decay throughout the first few hundreds of picoseconds past excitation, highlighting the importance of correct assimilation of l-Doubling in current research of dissipative rotational dynamics and in coherent rotational dynamics in general.

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