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Your search keyword '"Samuel A. Letzring"' showing total 3 results
Start Over Author "Samuel A. Letzring" Journal optics communications
3 results on '"Samuel A. Letzring"'

1. Initial performance results of the OMEGA laser system

Author

Terrance J. Kessler, C. P. Verdon, J. M. Soures, Samuel A. Letzring, F. J. Marshall, R. S. Craxton, S. J. Loucks, R. L. McCrory, W. Seka, Thomas Boehly, S. A. Kumpan, John H. Kelly, S. F. B. Morse, R. L. Keck, D. L. Brown, and James Knauer

Subjects
Materials science, business.industry, Laser, Omega, Performance results, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, law.invention, Glass laser, Optics, Upgrade, Acceptance testing, law, Electrical and Electronic Engineering, Physical and Theoretical Chemistry, business, Laboratory for Laser Energetics
Abstract

OMEGA is a 60-terawatt, 60-beam, frequency-tripled Nd:glass laser system designed to perform precision direct-drive inertial-confinement-fusion (ICF) experiments. The upgrade to the system, completed in April 1995, met or surpassed all technical requirements. The acceptance tests demonstrated exceptional performance throughout the system: high driver stability (

Published
1997

2. X-ray spectroscopy measurements of laser compressed, argon filled shells

Author

Martin Richardson, J. M. Soures, David M. Villeneuve, B. Yaakobi, R. Hutchison, and Samuel A. Letzring

Subjects
X-ray spectroscopy, Materials science, Argon, business.industry, chemistry.chemical_element, GCM transcription factors, Laser, Omega, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, law.invention, Optics, chemistry, law, Electrical and Electronic Engineering, Physical and Theoretical Chemistry, Atomic physics, business
Abstract

Argon X-ray lines have been used in the past to diagnose laser-compressed targets. We extend such measurements to: (a) very high densities (ρ ≈ 9 gcm -3 ) obtained when imploding small shells with short laser pulses, and (b) lower densities but higher π R values (≈4 mg cm -2 ) obtained with large DT-Ar filled shells, imploded with long laser pulses. The 24-beam OMEGA laser has been used with 4–5 TW, 100 ps pulses in (a), and 1.5–2 TW, 1 ns pulses in (b).

Published
1982

3. Time-resolved X-ray spectrometry of UV laser produced plasmas

Author

J. A. Delettrez, Robin Marjoribanks, Samuel A. Letzring, Martin Richardson, David M. Villeneuve, and W. Seka

Subjects
Materials science, Spectrometer, business.industry, Streak camera, Streak, Plasma, Mass spectrometry, Laser, Atomic and Molecular Physics, and Optics, Photocathode, Electronic, Optical and Magnetic Materials, law.invention, Optics, law, Ultrafast laser spectroscopy, Electrical and Electronic Engineering, Physical and Theoretical Chemistry, business
Abstract

Preliminary experiments using an X-ray streak filter spectrometer employing a Au/CsI bifurcated photocathode to investigate the X-ray history of UV (350 nm) laser produced plasmas are reported. Novel use of the streak spectrometer permits a direct and precise fiducial record of the laser pulse to be made from specularly scattered laser light, in true streak time relative to the X-ray record. Initial data indicates a constant 700 eV temperature during the laser pulse; time-resolved particulars are compared to simulations made by the design code LILAC.

Published
1982

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