Angular-gain spectrum of free-electron lasers.
Angular-gain spectrum of free-electron lasers.
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自由电子激光器的角增益光谱。
DOI：
10.1103/physreva.31.828
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发表时间：
1985
期刊：
影响因子：
--
通讯作者：
Ciocci
中科院分区：
文献类型：
--
作者：
Colson;Dattoli;Ciocci
自由电子激光的理论被扩展到包括电子束和以任意次谐波的角θ传播的光波之间的新的耦合。这种耦合使激光器可以调谐到更宽的波长范围，并将发射度的影响包括在电子束中。用耦合常数表示的结果意味着，现有的关于自由电子激光中高增益、低增益、弱光场、强光场和短脉冲的知识可以立即推广到任意谐波中的离轴传输。
The theory of free-electron lasers is extended to include the new coupling between an electron beam and optical wave propagating at an angle theta in an arbitrary harmonic. The coupling allows the laser to be tuned to a wider range of wavelengths and to include the effects of emittance in the electron beam. The formulation of the results in terms of coupling constants means that the existing knowledge of high gain, low gain, weak optical fields, strong optical fields, and short pulses in free-electron lasers can be immediately generalized to off-axis propagation in an arbitrary harmonic.