&lt;title&gt;Phase conjugation in short-pulse megajoule-class lasers&lt;/title&gt;

Eimerl, D.; Chernyak, V. M.; Pergament, M. I.; Smirnov, R. V.; Соколов, В. И.

doi:10.1117/12.228279

Cited by 4 publications

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“…These values are equal to the attenuation of Legendre modes of radiation flux uniformity from the inside of a sphere to an infinitely small capsule. Another case studied was p = 2.125 [10,11]. This value was selected in an attempt to minimize the RMS non-uniformity on the capsule.…”

Section: Application To Nifmentioning

confidence: 99%

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Modal analysis of power imbalance and pointing errors for direct drive and tetrahedral hohlraums

Pollaine

Eimerl

1998

Nucl. Fusion

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This article extends the work of Skupsky and Lee (Skupsky, S., Lee, K., Appl. Phys. 54 (1983) 3662) and Murakami et al. (Murakami, M., et al., J. Appl. Phys. 74 (1993) 802) in presenting analytic formulas that predict the laser flux asymmetry, in various inertial confinement fusion (ICF) targets from low order modes, due to beam geometry, variations in beam power and beam pointing errors. The variance per l mode σ2l is given for both direct drive and tetrahedral hohlraums, as a function of mode number, the beam geometry, and the pointing and power balance errors. For the National Ignition Facility (NIF), a proposed 1.8 MJ laser, the flux asymmetry on a direct drive capsule is dominated by power balance errors in modes 1 and 2. For the Omega, a 30 kJ laser at the Laboratory for Laser Energetics at the University of Rochester, the flux asymmetry on a direct drive capsule is dominated by pointing errors in modes 1 to 5. The flux asymmetry on a tetrahedral indirect drive target is dominated by the Y3,2 mode resulting from the laser entrance holes.

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Section: Application To Nifmentioning

confidence: 99%

“…It will operate at a wavelength of 351 nm and will have 192 individual beams in 48 groups (called 'quads') of four beams each. NIF is designed to accommodate both indirect and direct drive ICF [10,11]. Omega is currently the main facility in the USA for direct drive experiments.…”

Section: Introductionmentioning

confidence: 99%