论文标题
X射线脉冲产生其轨道角动量的超快速翻转
X-ray pulse generation with ultra-fast flipping of its orbital angular momentum
论文作者
论文摘要
提出了一种暂时量身定制X射线辐射的特性的方法。在模拟中，电子光束是用时间调制的微型束结构制备的，当在螺旋起伏的第二个谐波处辐射时，会产生具有相应时间调制强度的OAM光。该方法显示出可生成Attosent脉冲射击OAM光的速度，而无需任何其他外部光学元件，从而使波长范围可调节。除了OAM脉冲序列外，该方法还可以适应以产生辐射，在该辐射中，OAM模式的触觉也可以进行时间调节（翻转）。
A method to temporally tailor the properties of X-ray radiation carrying Orbital Angular Momentum (OAM) is presented. In simulations, an electron beam is prepared with a temporally modulated micro-bunching structure which, when radiating at the second harmonic in a helical undulator, generates OAM light with a corresponding temporally modulated intensity. This method is shown to generate attosecond pulse trains of OAM light without the need for any additional external optics, making the wavelength range tunable. In addition to the OAM pulse train, the method can be adapted to generate radiation where the handedness of the OAM mode may also be temporally modulated (flipped).
