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Optical afterburner for an X-ray FEL as a tool for ... - European XFEL

Optical afterburner for an X-ray FEL as a tool for ... - European XFEL

Optical afterburner for an X-ray FEL as a tool for ... - European XFEL

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FXE Workshop, Budapest, 9 Dec. 2009<br />

E.L. Saldin, E.A. Schneidmiller, M.V. Yurkov<br />

Two-color operation of <strong>an</strong> X<strong>FEL</strong><br />

• Create e-beam density modulation (if it does not exist) in the<br />

desired wavelength r<strong>an</strong>ge<br />

• Use some radiator<br />

• Tr<strong>an</strong>sport optical beam to experiment <strong>an</strong>d<br />

- use directly (if intense enough)<br />

- amplify <strong>an</strong>d use<br />

- cross-correlate with a powerful PP l<strong>as</strong>er <strong>an</strong>d sort out the data<br />

7

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