Lasing on the self-photopumped nickel-like 4f&hthinsp;{sup 1}P{sub 1}{r_arrow}4d&hthinsp;{sup 1}P{sub 1} x-ray transition

Journal Article · Fri Oct 01 04:00:00 EDT 1999 · Physical Review A

DOI:https://doi.org/10.1103/PhysRevA.60.R2677· OSTI ID:692511

Nilsen, J; Dunn, J; Osterheld, A L ^[1]; Li, Y ^[2]

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1. Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)
2. Institute for Laser Science and Applications, Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)

We demonstrate lasing on the nickel-like 3d{sup 9}&hthinsp;4f&hthinsp;{sup 1}P{sub 1}{r_arrow}3d{sup 9}&hthinsp;4d&hthinsp;{sup 1}P{sub 1} x-ray laser line in Zr (Z=40), Nb (Z=41), and Mo (Z=42) and present measured wavelengths for these ions as well as predicted values for ions from Z=36 to 54. Lasing on this line was first predicted two years ago and has now been achieved. Unlike the usual collisional excitation laser, this line lases because radiation trapping allows a large radiation field to build up on the 3d{sup 10}&hthinsp;{sup 1}S{sub 0}{r_arrow}3d{sup 9}&hthinsp;4f&hthinsp;{sup 1}P{sub 1} resonance line and populate the 4f upper laser state by the self-photopumping process. For Ni-like Mo a gain of 13 cm{sup {minus}1} is measured on this transition at 226 {Angstrom} for targets up to 1 cm long. thinsp {copyright} {ital 1999} {ital The American Physical Society}

• OSTI ID: 692511
• Journal Information: Physical Review A, Journal Name: Physical Review A Journal Issue: 4 Vol. 60; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
CATIONS
ENERGY LEVELS
EXCITED STATES
GAIN
LASER RADIATION
MOLYBDENUM
MOLYBDENUM IONS
MULTICHARGED IONS
NIOBIUM
OPTICAL PUMPING
X-RAY LASERS
ZIRCONIUM
ZIRCONIUM IONS