| 自由电子激光器中的电子阻尼运动 |
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| 引用本文： | 李治宽.自由电子激光器中的电子阻尼运动[J].物理学报,2000,49(5):893-897. |
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| 作者姓名： | 李治宽 |
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| 作者单位： | 承德民族师范高等专科学校物理系，承德 067000 |
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| 摘 要： | 建立了有阻尼项的摆方程，在小信号情况下，对方程进行了迭代求解.由解得的结果得到了增益函数的表达式.特别对弱阻尼和过阻尼情况进行了计算，分别得到了相应的增益函数简化公式.对阻尼项的来源和物理意义进行了详细的讨论.
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| 关 键 词： | 自由电子激光器 电子阻尼运动 增益函数 |
| 收稿时间： | 1999-05-12 |
DAMPED MOTION OF AN ELECTRON IN FREE-ELECTRON LASER |
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| LI ZHI-KUAN.DAMPED MOTION OF AN ELECTRON IN FREE-ELECTRON LASER[J].Acta Physica Sinica,2000,49(5):893-897. |
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| Authors: | LI ZHI-KUAN |
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| Abstract: | In this paper a simple pendulum equation with damping term is found for a free-electron laser. The equation is solved by using iteration in small signal regime and the formula of the gain function obtained corresponds to the iteration solution. Particularly, the simplified formulae are also derived of the gain function in both weak damping and overdamping regimes in free-electron lasers, and the origin and the physical meaning of the damping term in the simple pendulum equation are discussed in detail. |
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