Butcher, T.J., Chapman, R.T., Horak, P., Poletti, F., Frey, J.G. and Brocklesby, W.S.
Spatio-spectral technique to verify pump-pulse propagation model in an Ar-filled capillary in the presence of high harmonic generation
At Photon 10, United Kingdom.
23 - 26 Aug 2010.
High-power ultrashort laser pulses propagating in gas-filled capillaries can form a compact source of extreme ultraviolet (XUV) and soft X-ray radiation by high-harmonic generation (HHG) . Maximisation of the frequency conversion requires a detailed understanding of the atom-light interaction mechanism as well as the propagation properties of both the near-infrared pump in the presence of a partially ionized gas, and of the generated XUV. Previous theoretical studies of capillary based HHG by Christov et al.  have used numerical solutions of the 3-dimensional version of the scalar wave equation.
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