Optically controlled coherent X-ray radiations from photo-excited nanotubes
作者： Young-Min Shin
DOI: 10.1016/J.NIMB.2017.07.019
关键词:
摘要: Abstract Relativistic electrons propagating through a plasmonic medium such as photo-excited plasma channels with negative permittivities undergo betatron motions, emitting photons at oscillating resonance modes. The similar radiation can be generated in X-ray regimes from transported optically pumped carbon nanotubes (CNTs). condition of 0.5 and 6 MeV phase-matched waves CNTs is analyzed theoretical model the CNT dispersion relation. Based on analysis, intensities brilliance coherent source averaged over pulse duration are estimated using typical range system parameters conventional electron sources tabletop femtosecond lasers. assessment indicates that average harmonic reach 10 –10 13 photons/s/mm 2 /mrad /0.1%BW 0.5–6 MeV energy up to few keV.
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