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Donald Umstadter Publications
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Document Type
Article
Date of this Version
6-12-2000
Abstract
Phase-matched relativistic harmonic generation in plasmas is observed for the first time. Third-harmonic light is detected and discriminated spectrally and angularly from the harmonics generated from competing processes. Its angular pattern is a narrow forward-directed cone, which is consistent with phase matching of a high-order transverse mode in a plasma. The signal level is found to be on the same order of magnitude for a circularly polarized pump pulse as for a linearly polarized pump pulse.
Comments
Published by American Physical Society. Physical Review Letters 84, 5528 (2000). http://prl.aps.org. Copyright © 2000 American Physical Society. Permission to use.