On the Approximative Semiclassical Formula for the Electron-Impact Width of Multiply Ionized Atom Lines in Plasmas

Dimitrijevik, M.S.; Konjevik, N.

doi:10.1051/jphyscol:19797393

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1996

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“…At 12 Torr, we estimate the laser transition to have a linewidth of ϳ0.001 nm. 16 The plasma is calculated to be optically thick at 16.53 nm, with an absorption length at 12 Torr of 0.06 mm. Thus the lower laser level will be trapped, forcing stimulated-emission gain to self-terminate 12 after one upper-state lifetime (ϳ30 ps for pressures , 1 Torr, ϳ3.4 ps at 12 Torr).…”

Section: Introductionmentioning

confidence: 99%

Femtosecond-pulse-driven 10-Hz 418-nm laser in Xe ix

et al. 1996

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We report the observation of extreme UV lasing at 41.81 nm on the 4d 9 5d1 S 0 -4d 9 5p 1 P 1 transition 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 ϳ70 mJ and a duration of ϳ40 fs is longitudinally focused to a peak intensity of . 3 3 10 16 W͞cm 2 over a length 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 -1 and a total gain of exp(11).

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Section: Introductionmentioning

confidence: 99%