Since the invention of the laser, scientists have been striving to extend coherent light into the X-ray region. Very recently, because of a new ability to manipulate electrons on their natural, attosecond, time-scales, the dream of realizing bright, laser-like, X-ray beams on a tabletop with photon energies >1.6keV (wavelengths <8) has become a reality.

© 2013 OSA

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