High quality electron beam acceleration by ionization injection in laser wakefields with mid-infrared dual-color lasers

  title={High quality electron beam acceleration by ionization injection in laser wakefields with mid-infrared dual-color lasers},
  author={Ming Zeng and Ji Luo and Min Chen and Warren B. Mori and Zhengming Sheng and Bernhard Hidding},
  journal={Physics of Plasmas},
For the laser wakefield acceleration, suppression of beam energy spread while keeping sufficient charge is one of the key challenges. In order to achieve this, we propose bichromatic laser ionization injection with combined laser wavelengths of 2.4 μm and 0.8 μm for wakefield excitation and triggering electron injection via field ionization, respectively. A laser pulse at 2.4 μm wavelength enables one to drive an intense acceleration structure with a relatively low laser power. To further… 

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