Abstract
The use of an optical cavity containing a stimulated Brillouin scattering (SBS) phase-conjugate reflector to control the spatial and spectral output of a long pulse (>100 ns) X-ray preionized XeCl laser is reported. The divergence of the 3×4 cm2 output beam has been improved by a factor of ∼20 to <150 μrad. The temporal form of the output depends on the acoustic decay times of the liquid and gaseous SBS media used. Four-wave mixing via gain saturation has been observed within the discharge volume, leading to depolarisation of the output beam.
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Osborne, M.R., Schroeder, W.A., Damzen, M.J. et al. Low-divergence operation of a long-pulse excimer laser using a SBS phase-conjugate cavity. Appl. Phys. B 48, 351–356 (1989). https://doi.org/10.1007/BF00694193
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DOI: https://doi.org/10.1007/BF00694193