# Moving the Frontier of Quantum Control into the Soft X-Ray Spectrum

Authors: A. Aquila; M. Drescher; T. Laarmann; M. Barthelmeß; H. N. Chapman; S. Bajt
Journal: International Journal of Optics
 (2011)

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## Abstract

The femtosecond nature of X-ray free electron laser (FEL) pulses opens up exciting research possibilities in time-resolved studies including femtosecond photoemission and diffraction. The recent developments of seeding X-ray FELs extend their capabilities by creating stable, temporally coherent, and repeatable pulses. This in turn opens the possibility of spectral engineering soft X-ray pulses to use as a probe for the control of quantum dynamics. We propose a method for extending coherent control pulse-shaping techniques to the soft X-ray spectral range by using a reflective geometry 4f pulse shaper. This method is based on recent developments in asymmetrically cut multilayer optic technology and piezoelectric substrates.


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## Body


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*Source: 417075-2011-07-31.xml*