Reinterpretation of the neon-like titanium laser experiments

Journal Article · Mon Aug 01 00:00:00 EDT 1994 · Optical Engineering; (United States)

DOI:https://doi.org/10.1117/12.173558· OSTI ID:7157874

Nilsen, J; MacGowan, B J; Da Silva, L B; Moreno, J C; Koch, J A; Scofield, J H ^[1]

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1. Lawrence Livermore National Lab., CA (United States)

The authors present results that show lasing on the 3p [r arrow] 3s (J = 0 [r arrow] 1) transition in neon-like chromium (Z = 24), iron (Z = 26), and nickel (Z = 28) at 28.5, 25.5, and 23.1 nm, respectively. These results destroy the uniqueness of the lasing observed several years ago in neon-like titanium (Z = 22) at 32.6 nm on the same transition and makes highly unlikely the hypothesis that resonant photopumping is playing a significant role in the titanium laser. The titanium, chromium, iron, and nickel experiments all require a prepulse in order to lase, and the calculations suggest that the prepulse is an exciting new way to create a uniform low-density plasma that allows the proper conditions for gain and laser propagation for low-Z neon-like ions when illuminating a thick slab target. They also present an observation of hyperfine splitting in neon-like niobium at 14.6 nm and offer an explanation as to how the hyperfine effect is reducing the gain of neon-like ions with odd Z.

• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 7157874
• Journal Information: Optical Engineering; (United States), Journal Name: Optical Engineering; (United States) Vol. 33:8; ISSN 0091-3286; ISSN OPEGAR
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
426002* -- Engineering-- Lasers & Masers-- (1990-)
CHROMIUM
DATA
ELEMENTS
ENERGY-LEVEL TRANSITIONS
EXPERIMENTAL DATA
INFORMATION
IONIZATION
IRON
LASER MATERIALS
LASER-PRODUCED PLASMA
LASERS
MATERIALS
METALS
NICKEL
NUMERICAL DATA
OPTICAL PUMPING
PLASMA
PUMPING
TRANSITION ELEMENTS
X-RAY LASERS