First Observation of Self-Amplified Spontaneous Emission in a Free-Electron Laser at 109 nm Wavelength

J. Andruszkow et al.
Phys. Rev. Lett. 85, 3825 – Published 30 October 2000
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Abstract

We present the first observation of self-amplified spontaneous emission (SASE) in a free-electron laser (FEL) in the vacuum ultraviolet regime at 109 nm wavelength (11 eV). The observed free-electron laser gain (approximately 3000) and the radiation characteristics, such as dependency on bunch charge, angular distribution, spectral width, and intensity fluctuations, are all consistent with the present models for SASE FELs.

  • Received 17 April 2000

DOI:https://doi.org/10.1103/PhysRevLett.85.3825

©2000 American Physical Society

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Vol. 85, Iss. 18 — 30 October 2000

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