Harmonic emission from symmetrically Illuminated microballoons

J. Rizzo; S. Letzring; D. M. Villeneuve; Martin C. Richardson; G. Gregory; Y. Kim; R. S. Craxton; J. Delettrez; K. Lee; R. Hutchison

doi:10.1364/CLEO.1982.THP4

Conference on Lasers and Electro-Optics
OSA Technical Digest (Optica Publishing Group, 1982),
paper THP4
•https://doi.org/10.1364/CLEO.1982.THP4

Harmonic emission from symmetrically Illuminated microballoons

J. Rizzo, S. Letzring, D. M. Villeneuve, Martin C. Richardson, G. Gregory, Y. Kim, R. S. Craxton, J. Delettrez, K. Lee, and R. Hutchison

Conference on Lasers and Electro-Optics 1982

Phoenix, Arizona United States
14–16 April 1982
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Laser Fusion: 1 (THP)

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J. Rizzo, S. Letzring, D. M. Villeneuve, M. C. Richardson, G. Gregory, Y. Kim, R. S. Craxton, J. Delettrez, K. Lee, and R. Hutchison, "Harmonic emission from symmetrically Illuminated microballoons," in Conference on Lasers and Electro-Optics, R. Abrams and A. Guenther, eds., OSA Technical Digest (Optica Publishing Group, 1982), paper THP4.

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Abstract

The interaction between an intense laser beam and the corona of an irradiated spherical target causes the generation of second harmonic (2ω₀) emission at the optical density (n_c) and 3/2 harmonic emission (3ω₀/2) at the quarter critical density (n_c/4). Potentially, a number of mechanisms can be responsible for the generation of these harmonics, but for laser fusion, resonant absorption at n_c and the two plasmon and stimulated Raman instabilities at n_c/4 are of particular concern because of their capability of producing fast electrons.

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