Abstract
We investigate the potential of four-wave mixing in dielectric hollow waveguides for vacuum ultraviolet pulse generation with unprecedented short durations. Taking into account higher-order transverse modes and plasma effects we predict the generation of a pulse at using an intense , pulse and its weaker third harmonic at , both coupled to the fundamental transverse mode. Excitation of higher transverse modes allows an increase of the signal energy (up to by a factor of 20), but with a pulse duration of (compressible to ).
© 2008 Optical Society of America
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