Abstract
We report guiding of laser pulses with peak input intensities greater than in 30 mm and 50 mm long -filled capillary discharge waveguides. Under conditions producing good guiding the coupling and propagation losses of the waveguide were and , respectively. The spectra of the transmitted pulses were not broadened significantly, but were shifted to shorter wavelength. It is concluded that this shift is not associated with significant temporal distortion of the laser pulse.
- Received 10 April 2002
DOI:https://doi.org/10.1103/PhysRevLett.89.185003
©2002 American Physical Society