Experimental demonstration of attosecond hard X-ray pulses
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Lasing of a cavity-based X-ray source
Shortly after the free-electron laser (FEL) concept was proposed in the 1970s11, the first FEL oscillator was developed12…
Continuous terahertz band coverage through precise electron-beam tailoring in free-electron lasers
Kubacka, T. et al. Large-amplitude spin dynamics driven by a THz pulse in resonance with an electromagnon. Science…