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Effect of Molecular Orbital Angular Momentum on the Spatial Distribution of Fluorescence during Femtosecond Laser Filamentation in Air.
The Journal of Physical Chemistry Letters ( IF 4.8 ) Pub Date : 2020-01-03 , DOI: 10.1021/acs.jpclett.9b03025 Qiang Su 1 , Lu Sun 1 , Chunyue Chu 1 , Zhi Zhang 1 , Nan Zhang 1 , Lie Lin 1 , Zhinan Zeng 2 , Olga Kosareva 1, 3 , Weiwei Liu 1 , See Leang Chin 4
The Journal of Physical Chemistry Letters ( IF 4.8 ) Pub Date : 2020-01-03 , DOI: 10.1021/acs.jpclett.9b03025 Qiang Su 1 , Lu Sun 1 , Chunyue Chu 1 , Zhi Zhang 1 , Nan Zhang 1 , Lie Lin 1 , Zhinan Zeng 2 , Olga Kosareva 1, 3 , Weiwei Liu 1 , See Leang Chin 4
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Nonuniform azimuthal distribution of N2+ fluorescence emitted from the femtosecond laser filament in air was discovered. The fluorescence is stronger when the detector is placed perpendicular or parallel to the laser polarization. The experimental results have been confirmed by the theoretical calculation that the azimuthal distribution of fluorescence is reproduced by the convolution of the transition of the dipole and the molecular alignment in the strong laser field. The results would provide new insight into laser-molecule interactions during filamentation, which are important in practice for remote sensing using filamentation.
中文翻译：
飞秒激光在空气中丝化过程中分子轨道角动量对荧光空间分布的影响。
发现飞秒激光灯丝在空气中发出的N2 +荧光的方位角分布不均匀。当检测器垂直或平行于激光偏振放置时，荧光较强。通过理论计算已经证实了实验结果，在强激光场中，偶极跃迁和分子排列的卷积再现了荧光的方位角分布。该结果将提供对丝状化过程中激光分子相互作用的新见解，这在实践中对于使用丝状化进行遥感非常重要。
更新日期：2020-01-17
中文翻译：
飞秒激光在空气中丝化过程中分子轨道角动量对荧光空间分布的影响。
发现飞秒激光灯丝在空气中发出的N2 +荧光的方位角分布不均匀。当检测器垂直或平行于激光偏振放置时，荧光较强。通过理论计算已经证实了实验结果，在强激光场中，偶极跃迁和分子排列的卷积再现了荧光的方位角分布。该结果将提供对丝状化过程中激光分子相互作用的新见解，这在实践中对于使用丝状化进行遥感非常重要。
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