Patent ID: 7664147
Filing Date: 2010-02-16
Classification: G02F,H05G

Abstract:
1. The method of generating coherent x-ray emissions comprising the steps of: (a) providing a medium for high harmonic generation (HHG); (b) focusing a femtosecond driving pulse into the medium to cause high-harmonic generation (HHG) upconversion of the light to shorter wavelengths; (c) focusing a long duration modulating pulse, non-collinear to the driving pulse, into the medium such that the driving pulse and the modulating pulse interact within the medium; and (d) selecting the propagation direction, frequency and amplitude of the modulating pulse such that the modulating pulse modulates the phase of the high harmonic emission and improves the phase matching of the HHG by increasing areas of constructive interference between the driving pulse and the generated HHG.