Demonstration of a narrow-divergence x-ray laser in neonlike titanium

Journal Article · Sat Dec 01 04:00:00 EST 1990 · Physical Review, A; (USA)

DOI:https://doi.org/10.1103/PhysRevA.42.6962· OSTI ID:6253705

Boehly, T; Russotto, M; Craxton, R S; Epstein, R; Yaakobi, B ^[1]; Da Silva, L B; Nilsen, J; Chandler, E A; Fields, D J; MacGowan, B J; Matthews, D L; Scofield, J H; Shimkaveg, G ^[2]

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1. Laboratory for Laser Energetics, University of Rochester, Rochester, NY (USA)
2. Lawrence Livermore National Laboratory, Livermore, CA (USA)

We report an observation of soft-x-ray lasing in Ti, at 326.5 A, based on recent experiments conducted on the Glass Development Laser (1.054 {mu}m) at the Laboratory for Laser Energetics and the Nova laser (0.53 {mu}m) at Lawrence Livermore National Laboratory. This Ti laser, which has been identified as a 3{ital p}{r arrow}3{ital s} transition in Ne-like Ti, is unusual in several ways; the {ital J}=0{r arrow}1, 3{ital p}{r arrow}3{ital s} transition is observed to be the dominant laser line in a Ne-like spectrum, the laser output has a very narrow divergence, and lasing is observed only in experiments where the main optical pulse is preceded by a low-intensity prepulse. We describe the experimental results and present evidence that suggests the gain is enhanced by resonant photopumping of the Ne-like Ti 2{ital p}{r arrow}4{ital d} transitions by 3{ital s}{r arrow}2{ital p} C-like and 3{ital d}{r arrow}2{ital p} N-like Ti lines, which results in lasing on the 3{ital p}{r arrow}3{ital s} transitions in Ne-like Ti.

• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6253705
• Journal Information: Physical Review, A; (USA), Journal Name: Physical Review, A; (USA) Vol. 42:11; ISSN 1050-2947; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
426002* -- Engineering-- Lasers & Masers-- (1990-)
AMPLIFICATION
BEAM PROFILES
CHARGED PARTICLES
FEASIBILITY STUDIES
GAIN
IONS
LASERS
OPTICAL PUMPING
PUMPING
TITANIUM IONS
X-RAY LASERS