Due to the large difference in cross section for stimulated emission for the (BX) and (C ➙ A) transition in XeF* almost all the laser energy will be coupled out in the strongest (BX) transition. By using special optics and special gas mixtures one can favor the weaker and prejudice the stronger transition. In this way it is possible to produce intense green laser light from the broadband (CA) transition (485 ± 25 nm).1 To excite this laser an intense electron beam as a pump source is required. Most of these sources produce either a very intense e-beam pulse with a short duration (≈10 MW / cm3)2 or a long pulse with a moderate pumping power (~0.1 MW/cm3).3

© 1990 Optical Society of America

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