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. 2005 Nov 4;95(19):194801.
doi: 10.1103/PhysRevLett.95.194801. Epub 2005 Nov 2.

High-harmonic inverse-free-electron-laser interaction at 800 nm

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High-harmonic inverse-free-electron-laser interaction at 800 nm

Christopher M S Sears et al. Phys Rev Lett. .

Abstract

We present the first direct observation of a higher-order inverse-free-electron-laser (IFEL) interaction. Interaction at the fourth, fifth, and sixth harmonics is observed from an IFEL operating at 800 nm. The harmonic spacing, relative harmonic strength, and transverse beam overlap of the interaction are all in good agreement with tracking simulations.

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