离子通道激光
ION-CHANNEL LASER
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摘要: 离子通道激光(ICL)是一种可工作在紫外和X射线区的新型自由电子激光。本文对低增益情况下ICL的辐射放大机制进行了研究。利用Madey理论导出了ICL的增益公式;通过群聚参量Bi对ICL中电子的两种不同的群聚机制进行了讨论;由谐振条件得出了ICL的输出频率,并与回旋自谐振脉塞(CARM)和常规自由电子激光(FEL)进行了比较。Abstract: Ion-channel laser (ICL) is a new form of free electron laser which can produce tunable-coherent radiation with frequencies ranging from microwave to soft X rays. In this paper, the amplification mechanism of ICL in low gain regime is investigated. Using the Madey theory, the gain formula of ICL is derived. Two different bunching mechanism of the electrons in ICL are discussed through the bunching parameter Bi. The output frequency of ICL is obtained from the resonance condition, and the comparison is carrying out among ICL Cyclotron Auto Resonance Maser (CARM) and conventional Free Electron Laser (FEL).
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