辐射力和中性粒子在脉冲包络内的约束。碰撞电离新机制
Radiation forces and confinement of neutral particles into the pulse envelope. New regime of collision ionization
摘要：
本文研究了激光脉冲在介质中传播时产生的辐射力和势密度的解析表达式。在飞秒区域，力变得足够强，将中性粒子限制在脉冲包络中，并使它们在气体中以群速度平移。此外，如果被捕获的粒子具有高密度，则与空气中的自由原子和分子碰撞的概率变得显著。碰撞能量在12 - 24 GeV之间，足以使中性原子相互碰撞。因此，当强飞秒脉冲在气体介质中传播时，可以观察到一种新型的碰撞电离。
英文摘要：
The aim of this work is to find analytical expressions of the radiation force and potential densities arising from a laser pulse propagating in a dielectric media. In the femtosecond region the force becomes strong enough to confine neutral particles into the pulse envelope and translate them with the group velocity in gases. Additionally, if the trapped particles are with high density, the probability of collision with the free atoms and molecules in air become significant. The collision energies are in the range of 12 - 24 GeV and high enough to ionize the neutral atoms. Thus, a new type of collision ionization can be observed, when powerful femtosecond pulses propagate in gaseous media.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
