Wandner, W., authorLucianetti, A., authorBortolotto, F., authorRocca, Jorge J., authorJanulewicz, K. A., authorNickles, P. V., authorEDP Sciences, publisher2007-01-032007-01-032001Nickles, P. V., et al., Hybridly Pumped Collisional Soft X-Ray Laser in Ne-like Sulphur, Journal de Physique. IV, Colloque 11, no. Pr2 (2001): 93-98.http://hdl.handle.net/10217/67487We describe an experiment demonstrating XUV amplification following collisional excitation in a discharge-created plasma waveguide irradiated by a picosecond optical laser pulse. A capillary discharge was used to generate a plasma radiation pipe with a radially concave electron density profile. Temporally resolved transmission characteristics and guiding effect have been measured. An intense short laser pulse rapidly heated the electrons, producing amplification in the 3p1S0-3s 1P1 transition of Ne-like S at 60.84 nm. The integrated gain-length product obtained within a 3 cm active medium with a laser energy of 0.46 J was ~6.8. The pump energy depletion has been analysed as well. This new, hybridly pumped soft X-ray laser with the transient gain offers a new way towards efficient tabletop coherent XUV sources.born digitalarticleseng©2001 EDP Sciences.Copyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright.Text