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- Title
Generation of intense continuum extreme-ultraviolet radiation by many-cycle laser fields.
- Authors
Tzallas, P.; Skantzakis, E.; Kalpouzos, C.; Benis, E. P.; Tsakiris, G. D.; Charalambidis, D.
- Abstract
Continuing efforts in ultrashort pulse engineering have recently led to the breakthroughs of the generation of attosecond (10−18 s) pulse trains and isolated pulses. Although trains of multiple pulses can be generated through the interaction of many-optical-cycle pulses with gases—a process that has led to intense extreme-ultraviolet emission—the generation of isolated high-intensity pulses, which requires few-cycle driving pulses, remains a challenge. Here, we report a vital step towards the generation of such pulses, the production of broad continuum extreme-ultraviolet emission using a high-intensity, many-cycle, infrared pulsed laser, through the interferometric modulation of the ellipticity of 50-fs-long driving pulses. The increasing availability of high-power many-cycle lasers and their potential use in the construction of intense attosecond radiation—with either gas or solid-surface targets—offer exciting opportunities for multiphoton extreme-ultraviolet-pump–extreme-ultraviolet-probe studies of laser–matter and laser–plasma interactions.
- Subjects
ULTRASHORT laser pulses; ULTRAVIOLET radiation; PULSE generators; LASER beams; OPTOELECTRONIC devices; MATHEMATICAL continuum
- Publication
Nature Physics, 2007, Vol 3, Issue 12, p846
- ISSN
1745-2473
- Publication type
Article
- DOI
10.1038/nphys747