Interaction of light filaments in air |
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| Authors: | Xi Ting-Ting Lu Xin Hao Zuo-Qiang Ma Yuan-Yuan and Zhang Jie |
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| Affiliation: | [1]Beijing National Laboratory of Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China [2]College of Physical Sciences, Graduate University of the Chinese Academy of Sciences, Beijing 100049, China [3]State Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871, China [4]Department of Physics, Shanghai Jiao Tong University, Shanghai 200240, China |
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| Abstract: | This paper analytically investigates the interaction of light
filaments generated by a femtosecond laser beam in air. It obtains the
Hamiltonian of a total laser field and interaction force between two
filaments with different phase shifts and crossing angles. The
property of the interaction force, which leads the attraction or
repulsion of filaments, is basically dependent on the phase shift
between filaments. The crossing angle between two filaments can only
determine the magnitude of the interaction force, but does not
change the property of the force. |
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| Keywords: | femtosecond laser beam air light filaments Hamiltonian |
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