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- Title
High-brightness optical-field-ionization collisional-excitation extreme-ultraviolet lasing pumped by a 100-TW laser system in an optically preformed plasma waveguide.
- Authors
Chen, B.; Ho, Y.-C.; Hung, T.-S.; Chang, Y.-L.; Chou, M.-C.; Chen, S.-Y.; Chu, H.-H.; Huang, S.-L.; Lin, P.-H.; Wang, J.; Lin, J.-Y.
- Abstract
Recent study on optical-field-ionization collisional-excitation extreme-ultraviolet lasing of Ni-like krypton at 32.8 nm pumped by a 100-TW laser system with an optically preformed plasma waveguide is reported. By using a 9-mm-long pure krypton plasma waveguide fabricated with the axicon-ignitor-heater scheme, the 32.8-nm extreme-ultraviolet laser provided an average output of 10 photons/pulse at pump energy of 1 J, more than one order of magnitude enhancement relative to the previous results with the same scheme at pump energy of 235 mJ. It is also found the far-field pattern of laser beams varies from a single peak profile at low pump energy to an annular profile at high pump energy due to over-ionization of krypton ions at the center of the plasma channel.
- Subjects
COLLISIONAL excitation; PLASMA waveguides; IONIZATION (Atomic physics); LASER beams; PHOTONS; ULTRAVIOLET radiation; OPTICAL pumping
- Publication
Applied Physics B: Lasers & Optics, 2012, Vol 106, Issue 4, p817
- ISSN
0946-2171
- Publication type
Article
- DOI
10.1007/s00340-011-4810-y