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First observation of self-amplified spontaneous emission in a free-electron laser at 109 nm wavelength |
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| Authors: | Saldin Sandner Sanok Schlarb Schmidt Schmuser Schneider Schneidmiller Schreiber Schreiber Schutt Sekutowicz Serafini Sertore Setzer Simrock Sonntag Sparr Stephan Sytchev Tazzari Tazzioli Tigner Timm Tonutti Trakhtenberg |
| Affiliation: | Institute of Nuclear Physics, Ul. Kawiory 26 a, 30-55 Krakow, Poland. |
| 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. |
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