Journal
PHYSICAL REVIEW LETTERS
Volume 105, Issue 24, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.105.243902
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Funding
- Max Planck Society
- King Saud University
- DFG Cluster of Excellence: Munich Centre for Advanced Photonics
- MC [MERG-CT-2007-208643]
- Alexander von Humboldt Foundation
- ERC
- Russian Federal Science and Technology Program [1130, 02.740.11.0223]
- Russian Foundation for Basic Research [09-02-91004, 09-02-12359, 09-02-12373]
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We demonstrate generation of coherent microjoule-scale, low-order harmonic supercontinua in the deep and vacuum ultraviolet (4-9 eV), resulting from the nonlinear transformations of near-single-cycle laser pulses in a gas cell. We show theoretically that their formation is connected to a novel nonlinear regime, holding promise for the generation of powerful deep-UV and vacuum ultraviolet subfemtosecond pulses. Our work opens the route to pump-probe spectroscopy of subfemtosecond-scale valence-shell phenomena in atoms, molecules, and condensed matter.
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