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Journal Article

X-ray-optical cross-correlator for gas-phase experiments at the Linac Coherent Light Source free-electron laser.

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Rolles,  D.
Research Group of Structural Dynamics of (Bio)Chemical Systems, MPI for Biophysical Chemistry, Max Planck Society;

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Citation

Schorb, S., Gorkhover, T., Cryan, J. P., Glownia, J. M., Bionta, M. R., Coffee, R. N., et al. (2012). X-ray-optical cross-correlator for gas-phase experiments at the Linac Coherent Light Source free-electron laser. Applied Physics Letters, 100(12): 121107. doi:10.1063/1.3695163.


Cite as: http://hdl.handle.net/11858/00-001M-0000-002C-15C9-A
Abstract
X-ray–optical pump–probe experiments at the Linac Coherent Light Source (LCLS) have so far been limited to a time resolution of 280 fs fwhm due to timing jitter between the accelerator-based free-electron laser(FEL) and optical lasers. We have implemented a single-shot cross-correlator for femtosecondx-ray and infrared pulses. A reference experiment relying only on the pulse arrival time information from the cross-correlator shows a time resolution better than 50 fs fwhm (22 fs rms) and also yields a direct measurement of the maximal x-ray pulse length. The improved time resolution enables ultrafast pump–probe experiments with x-ray pulses from LCLS and other FEL sources.