Saturated Amplification of a Collisionally Pumped Optical-Field-Ionization Soft X-Ray Laser at 41.8 nm
Stéphane Sebban
(1)
,
Romain Haroutunian
(1)
,
Philippe Balcou
(1)
,
G. Grillon
(1)
,
Antoine Rousse
(1)
,
Sophie Kazamias
(1)
,
T. Marin
(1)
,
Jean-Philippe Rousseau
(1)
,
L. Notebaert
(1)
,
M. Pittman
(1)
,
Jean-Paul Chambaret
(1)
,
André Antonetti
(1)
,
D. Hulin
(1)
,
David Ros
(2)
,
Annie Klisnick
(2)
,
Antoine Carillon
(2)
,
P. Jaeglé
(2)
,
Gérard Jamelot
(2)
,
J.-F. Wyart
(3)
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
Antoine Rousse
- Function : Author
- PersonId : 4344
- IdHAL : antoine-rousse
- ORCID : 0000-0003-0885-9285
- IdRef : 076337170
Jean-Philippe Rousseau
- Function : Author
- PersonId : 4351
- IdHAL : jean-philippe-rousseau
- IdRef : 253136288
Abstract
We report the first saturated amplification of an optical-field-ionization soft x-ray laser. The amplifying medium is generated by focusing a circularly polarized 330-mJ, 35-fs, 10-Hz Ti:sapphire laser system in a few-mm cell filled with xenon. A gain of 67 cm^-1 on the 4d^95p-4d^95d transition at 41.8 nm in Pd-like xenon and a gain-length product of 15 have been inferred at saturation. This source delivers about 5×10^9 photons per pulse. The influence of the pumping energy and the laser polarization on the lasing output are also presented.