Journal of quantitative spectroscopy & radiative transfer
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Philippe Zeitoun
- Function : Author
- PersonId : 4358
- IdHAL : philippe-zeitoun
- IdRef : 08195574X
Stéphane Sebban
- Function : Author
- PersonId : 4406
- IdHAL : stephane-sebban
- IdRef : 095683410
Philippe Balcou
- Function : Author
- PersonId : 178208
- IdHAL : philippe-balcou
- ORCID : 0000-0002-5546-6436
- IdRef : 131836196
F. Burgy
- Function : Author
- PersonId : 759722
- ORCID : 0000-0002-6189-7072
D. Douillet
- Function : Author
- PersonId : 4938
- IdHAL : denis-douillet
- IdRef : 03118703X
Jean-Philippe Rousseau
- Function : Author
- PersonId : 4351
- IdHAL : jean-philippe-rousseau
- IdRef : 253136288
Constance Valentin
- Function : Author
- PersonId : 749586
- IdHAL : constance-valentin
- ORCID : 0000-0001-7519-3829
- IdRef : 197903657
Franck Delmotte
- Function : Author
- PersonId : 913971
- IdHAL : franck-delmotte
Abstract
High harmonic amplification is shown in an optical-field ionized X-ray laser. The 4d-4p X-ray line of Kr8+ at 32.8 nm, 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.