1.Physik Department E12,Technische Universit?t München,Garching,Germany;2.Coherent GmbH, Zielstattstr. 32,München,Germany
Abstract:
The 1.73 μm XeI laser has been operated in a fully continuous mode
using a table-top electron beam pumped laser setup. A 12 keV electron beam
sent through a 300 nm thick silicon nitride membrane into a laser gas
mixture of typically 600 mbar gas pressure was used for pumping. A low loss
cavity was installed, resulting in a very low pumping power of 37 mW to
reach laser threshold. The geometrical conditions for the laser setup such
as the shape of the beam pumped volume and its overlap with the optical mode
volume are discussed. The laser scheme has been clearly identified as a
recombination laser scheme by operating the laser in pulsed mode and
observing the time structure of the laser pulse.