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Persistent URL http://purl.org/net/epubs/work/62519
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Record Id 62519
Title Soft-X-Ray Harmonic Comb from Relativistic Electron Spikes
Contributors
Abstract We demonstrate a new high-order harmonic generation mechanism reaching the “water window” spectral region in experiments with multiterawatt femtosecond lasers irradiating gas jets. A few hundred harmonic orders are resolved, giving μJ/sr pulses. Harmonics are collectively emitted by an oscillating electron spike formed at the joint of the boundaries of a cavity and bow wave created by a relativistically self-focusing laser in underdense plasma. The spike sharpness and stability are explained by catastrophe theory. The mechanism is corroborated by particle-in-cell simulations.
Organisation CLF , CI , STFC
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Language English (EN)
Type Details URI(s) Local file(s) Year
Journal Article Phys Rev Lett 108, no. 13 (2012): 135004. doi:10.1103/PhysRevLett.108.135004 2012
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