Grant-Jacob, J., Mills, B., Butcher, T.J., Chapman, R.T., Brocklesby, W.S. and Frey, J.G.
Influence of gas jet structure on high harmonic generation
At Photon 10, United Kingdom.
23 - 26 Aug 2010.
Spatially coherent X-rays are a potentially useful source for imaging biological and crystalline material at nanometre length scales . Such radiation can be produced via high harmonic generation (HHG), commonly achieved by focussing a high-energy ultrashort laser pulse into ajet of noble gas . However, gas jets have a complex three dimensional density and velocity profile , and since the generation efficiency depends on both the density of nonlinear material present and the degree of phase matching, the profile of the gas jet can have a significant influence on the generation process.
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