Tabletop Transient Collisional Excitation X-Ray Lasers

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Recent transient collisional excitation x-ray laser experiments are reported using the COMET tabletop laser driver at the Lawrence Livermore National Laboratory (LLNL). Ne-like and Ni-like ion x-ray laser schemes have been investigated with a combination of long 600 ps and short {approximately}1 ps high power laser pulses with 5-10 J total energy. We show small signal gain saturation for x-ray lasers when a reflection echelon traveling wave geometry is utilized. A gain length product of 18 has been achieved for the Ni-like Pd 4d{r_arrow}4p J=0-1 line at 147 {angstrom}, with an estimated output of {approximately}10{micro}J. Strong lasing on the 119 ... continued below

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726 Kilobytes pages

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Dunn, J.; Li, Y.; Osterheld, A. L; Nilsen, J.; Moon, S. J.; Fournier, K. B. et al. September 3, 1999.

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Recent transient collisional excitation x-ray laser experiments are reported using the COMET tabletop laser driver at the Lawrence Livermore National Laboratory (LLNL). Ne-like and Ni-like ion x-ray laser schemes have been investigated with a combination of long 600 ps and short {approximately}1 ps high power laser pulses with 5-10 J total energy. We show small signal gain saturation for x-ray lasers when a reflection echelon traveling wave geometry is utilized. A gain length product of 18 has been achieved for the Ni-like Pd 4d{r_arrow}4p J=0-1 line at 147 {angstrom}, with an estimated output of {approximately}10{micro}J. Strong lasing on the 119 {angstrom} Ni-like Sn line has also been observed. To our knowledge this is the first time gain saturation has been achieved on a tabletop laser driven scheme and is the shortest wavelength tabletop x-ray laser demonstrated to date. In addition, we present preliminary results of the characterization of the line focus uniformity for a Ne-like ion scheme using L-shell spectroscopy.

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726 Kilobytes pages

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  • The International Society for Optical Engineering Conference on Soft X-Ray Lasers and Application III, Denver, CO (US), 07/19/1999--07/20/1999

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  • Report No.: UCRL-JC-136567
  • Report No.: 97-ERD-105
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 757465
  • Archival Resource Key: ark:/67531/metadc711667

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  • September 3, 1999

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  • Sept. 12, 2015, 6:31 a.m.

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  • May 6, 2016, 2:04 p.m.

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Dunn, J.; Li, Y.; Osterheld, A. L; Nilsen, J.; Moon, S. J.; Fournier, K. B. et al. Tabletop Transient Collisional Excitation X-Ray Lasers, article, September 3, 1999; California. (digital.library.unt.edu/ark:/67531/metadc711667/: accessed August 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.