Second Generation X-Ray Lasers
Journal of Quantitative Spectroscopy & Radiative Transfer/Journal of quantitative spectroscopy & radiative transfer(2006)
摘要
High harmonic amplification is shown in an optical-field ionized X-ray laser. The 4d–4p X-ray line of Kr8+ at 32.8nm, which has a close match to the 25th harmonic of the infrared laser, was amplified up to 200 times. The energy-extraction regime was also achieved, which depended on the level of seeding. This second-generation X-ray laser is fully polarized, has low divergence and shows a high degree of coherence. The duration is also expected to be short, fulfilling the requirements for an ultra-intense tabletop X-ray laser. Conditions for higher energy output are also suggested.
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关键词
X-ray laser,amplification,high harmonic generation,optical field ionization
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