Femtosecond-pulse-driven 10-Hz 41.8-nm laser in Xe IX

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Edward L. Ginzton Laboratory, Stanford University, Stanford, CA 94305, United States [1 ]
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J Opt Soc Am B | / 1卷 / 180-184期
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We report the observation of extreme UV lasing at 41.81 nm on the 4d95d1S0-4d95p1P1transition in Xe IX, as proposed by Lemoff et al. [Opt. Lett. 19, 569 (1994)]. A 10-Hz circularly polarized 800-nm laser pulse with an energy of ∼70 mJ and a duration of ∼40 fs is longitudinally focused to a peak intensity of >3 × 1016W/cm2over a lfnrth of 8.4 nm in a differentially pumped cell containing 12 Torr of Xe gas. Laser amplification was observed with an estimated gain coefficient of 13 cm-1and a total gain of exp(11). © 1996 Optical Society of America.
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