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    • 10. 发明申请
    • Micro free electron laser (FEL)
    • 微电子激光器(FEL)
    • US20090290604A1
    • 2009-11-26
    • US11411129
    • 2006-04-26
    • Jonathan GorrellMark DavidsonMichael E. Maines
    • Jonathan GorrellMark DavidsonMichael E. Maines
    • H01S3/00
    • H01S3/0903H01J25/00H05H7/04H05H15/00
    • A charged particle beam including charged particles (e.g., electrons) is generated from a charged particle source (e.g., a cathode or scanning electron beam). As the beam is projected, it passes between plural alternating electric fields. The attraction of the charged particles to their oppositely charged fields accelerates the charged particles, thereby increasing their velocities in the corresponding (positive or negative) direction. The charged particles therefore follow an oscillating trajectory. When the electric fields are selected to produce oscillating trajectories having the same (or nearly the same) frequency as the emitted radiation, the resulting photons can be made to constructively interfere with each other to produce a coherent radiation source.
    • 从带电粒子源(例如阴极或扫描电子束)产生包括带电粒子(例如电子)的带电粒子束。 当光束投射时,它通过多个交变电场。 带电粒子对其带电荷的场的吸引力加速了带电粒子,从而在相应的(正或负)方向上增加了它们的速度。 带电粒子因此遵循振荡轨迹。 当选择电场以产生具有与发射的辐射相同(或几乎相同的)频率的振荡轨迹时,可以使得到的光子相互干涉以产生相干辐射源。