Quasi phase matching for high order harmonic generation induced by the carrier-envelope phase

Details Quasi phase matching for high order harmonic generation induced by the carrier-envelope phase Quasi phase matching for high order harmonic generation induced by the carrier-envelope phase

2009-08-16

arxiv.org/abs/0908.2223v1

Physics

Atomic Physics

4 pagesm 4 figures

Scientific paper

We report a novel quasi-phase matching technique for high-order harmonic generation in low-density gases. Numerical simulations show that in few-optical cycle pulsed Bessel beams it is possible to control the pulse envelope and phase velocities which in turn allows to control the carrier-envelope phase during propagation. The resulting oscillations in the peak intensity allow to phase-match the high-order harmonic generation process with a nearly two decade enhancement in the XUV power spectrum.

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