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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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Erk,  Benjamin
Department of Biomolecular Mechanisms, Max Planck Institute for Medical Research, Max Planck Society;

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Rolles,  Daniel
Department of Biomolecular Mechanisms, Max Planck Institute for Medical Research, Max Planck Society;

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http://dx.doi.org/10.1063/1.3695163
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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, pp. 1-4. doi:10.1063/1.3694935.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0024-1F40-8
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 femtosecond x−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