Coherent control of x-rays by laser-produced optical phonons and generation of extremely short x-ray pulses
Abstract
By solving analytically and numerically dynamical diffraction equations, we study the modulation of x-rays in ideal crystals by a co-propagating wave of impulsively excited optical phonons. Our results for a diamond crystal suggest that the output diffracted x-ray field can have a time structure much shorter than the period of the excited vibrational mode (Tv = 25 fs). We explain this dynamics in terms of high-order Raman scattering of x-rays by optical phonons. The potential of this ultrafast modulation technique for controlling x-rays from synchrotron and FEL sources is discussed.
- Publication:
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Journal of Physics Conference Series
- Pub Date:
- January 2005
- DOI:
- 10.1088/1742-6596/21/1/015
- Bibcode:
- 2005JPhCS..21...95N