Tabletop x-ray lasers

Journal Article · Sun May 01 04:00:00 EDT 1994 · Physics of Plasmas; (United States)

DOI:https://doi.org/10.1063/1.870936· OSTI ID:5031308

Eder, D C; Amendt, P; DaSilva, L B; London, R A; MacGowan, B J; Matthews, D L; Penetrante, B M; Rosen, M D; Wilks, S C ^[1]; Donnelly, T D; Falcone, R W ^[2]; Strobel, G L ^[3]

---

1. Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)
2. University of California at Berkeley, Berkeley, California 94720 (United States)
3. University of Georgia, Athens, Georgia 30602 (United States)

Details of schemes for two tabletop size x-ray lasers that require a high-intensity short-pulse driving laser are discussed. The first is based on rapid recombination following optical-field ionization. Analytical and numerical calculations of the output properties are presented. Propagation in the confocal geometry is discussed and a solution for x-ray lasing in Li-like N at 247 A is described. Since the calculated gain coefficient depends strongly on the electron temperature, the methods of calculating electron heating following field ionization are discussed. Recent experiments aimed at demonstrating lasing in H-like Li at 135 A are discussed along with modeling results. The second x-ray laser scheme is based on the population inversion obtained during inner-shell photoionization by hard x rays. This approach has significantly higher-energy requirements, but lasing occurs at very short wavelengths ([lambda][le]15 A). Experiments that are possible with existing lasers are discussed.

• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5031308
• Journal Information: Physics of Plasmas; (United States), Journal Name: Physics of Plasmas; (United States) Vol. 1:5; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
426002* -- Engineering-- Lasers & Masers-- (1990-)
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700350 -- Plasma Production
Heating
Current Drive
& Interactions-- (1992-)
ALKALI METALS
AMPLIFICATION
ATOM COLLISIONS
AUGER EFFECT
COLLISIONS
ELECTRON DENSITY
ELEMENTS
GAIN
HYDROGEN
INNER-SHELL IONIZATION
ION COLLISIONS
IONIZATION
LASER-PRODUCED PLASMA
LASERS
LITHIUM
METALS
NITROGEN
NONMETALS
PHOTOIONIZATION
PHOTON COLLISIONS
PHOTON-ATOM COLLISIONS
PHOTON-ION COLLISIONS
PLASMA
X-RAY LASERS