Journal
OPTICS EXPRESS
Volume 23, Issue 26, Pages 33947-33955Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.23.033947
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Funding
- Hungarian Scientific Research Fund (OTKA project) [NN107235]
- Bolyai Grant of the Hungarian Academy of Sciences
- Deutsche Forschungsgemeinschaft (DFG-ERA Grant) [VR 76/1-1]
- Deutsche Forschungsgemeinschaft (DFG) [RO 4577/1-1]
- [PN-II-RU-PD-2011-3-0236]
- [PN-II-ID-PCE-2012-4-0342]
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We study two-color high-order harmonic generation in Neon with 790nm and 1300nm driving laser fields and observe an extreme-ultraviolet continuum that extends to photon energies of 160eV. Using a 6-mm-long, high pressure gas cell, we optimize the HHG yield at high photon energies and investigate the effect of ionization and propagation under phase-matching conditions that allow us to control the temporal structure of the XUV emission. Numerical simulations that include the 3D propagation of the two-color laser pulse show that a bright isolated attosecond pulse with exceptionally high photon energies can be generated in our experimental conditions due to an efficient hybrid optical and phase-matching gating mechanism. (C) 2015 Optical Society of America
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