| 朱金荣,佟国栋,夏长权.静电场中高斯激光束与电子作用产生单个阿秒脉冲[J].光电子激光,2018,29(5):567~ |
| 静电场中高斯激光束与电子作用产生单个阿秒脉冲 |
| Generation of a single cycle attosecond pulse via Thomson scattering of Gaussian beam acting with a single electron in the electrostatic field |
| 投稿时间：2017-09-20 |
| DOI： |
| 中文关键词: attosecond pulse 高斯光束 非线性Thomson Scattering 单电子运动 |
| 英文关键词:attosecond pulse Gaussian beam nonlinear thomson scattering single electron |
| 基金项目:江苏省科学基金(BY2016069-14)资助项目 (扬州大学 物理科学与技术学院,江苏 扬州 225002) |
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| 中文摘要: |
| 提出了利用线极化的高斯光束穿过固体表面与其电 离的一个电子在Thomson散射作用下产生单个阿秒脉冲辐射的方法。发现了上述环境中有合 适大小均匀静电场的情况下可以产生单个阿秒 脉冲。分别研究了4种不同强度的静电场大小对处在光场半腰束位置的电子产生脉冲的影响 。结果显 示在相同参数,束腰半径r0=5,脉冲宽度w0=3,持续周期时间为200ms,P=1的情况下,四种不 同大小静电场环境中均可以产生阿秒脉冲。但是只有当高斯光速强度为5,静电场大小为归 一化的 Es=5×10－4时,可以产生单个阿秒脉冲,脉冲宽度为16as。并且比无其他静电场产生脉冲的强度更 强,方向单一化。因此得出高斯强度Es=5×10 －4的静电场与静止的单个电子作用可以得出单个阿秒脉冲辐射。 |
| 英文摘要: |
| In this paper,a new way of generating the single attosecond pulses via Thomson scattering of linearly polarized Gaussi an beam propagating on solid surface is investigated.It is found that a single attosecond laser pulse is generated,which renders the appropriate strength elect rostatic field to the environment.The influence of the electrostatic fields with four different intens ities on the pulse of electrons at the half-waist position is studied.The results show that with the same paramete rs,namely,pulse radius is r0=5,waist width is w0=3,continuous cycle time is 200ms and the P=1 (l inear polarization),four different electrostatic fields can generate the attosecond pulses.But only when the Gaussian velocity of light intensity is 5and the intensity of electrostatic fie ld is Es= 5×10－4,a single attosecond pulse is generated with a pulse width of 16as,stronger than that wit hout any other electrostatic field intensity with direction simplification.Therefore,it can be concluded that the single attosecond pulse can be generated by the interaction between the electrostatic f ield with Gaussian intensity of Es= 5×10－4 and stationary sing le electron. |
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