91探花 Centre for High Energy Density Science (OxCHEDS)

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Determination of the gain coefficient of an no iaser at 218 nm

Journal of Physics D: Applied Physics 25:4 (1992) 593-596

Authors:

AM Haxell, SM Hooker, CE Webb

Abstract:

We have observed laser oscillation on the B’2Δ-X2n (3-10) and (3-11) transitions of an F2 laser pumped nitric oxide laser. The maximum total output pulse energy was 280μJ. We present here the results of an investigation to determine the maximum intra-cavity loss which still allows laser oscillation to occur in this system. This information has been used to find the effective gain coefficient of the NO laser, operating on the B’2Δ-X2n (3-10) transition at 218 nm by applying the condition for cw laser oscillation. The effective cw gain coefficient was found to be 0.25 cm-1 for pump laser intensities of 20 MWcrrr2. ? 1992 IOP Publishing Ltd.

27p-T-3 短パルスレーザー(SPRITE)による電子再結合軟X線レーザー

(1992) 370

Authors:

村井 健介, 袁 鋼, 白神 宏之, 加藤 義章, 中井 貞雄, P Norreys, R Kodama, G Tallents, MH Key, S Ramsden, GJ Pert

Improvements to ion-correlation experiments in dense plasmas

Laser and Particle Beams Cambridge University Press (CUP) 10:1 (1992) 41-51

Authors:

BA Shiwai, A Djaoui, TA Hall, GJ Tallents, SJ Rose

Collisionally excited X-ray laser schemes: progress at Rutherford Appleton Laboratory (Invited Paper)

Proceedings of SPIE--the International Society for Optical Engineering SPIE, the international society for optics and photonics 1551 (1992) 49-55

Authors:

Ciaran LS Lewis, Domhnail O'Neill, David Neely, James O Uhomoibhi, Ronald E Burge, Gary E Slark, M Brown, Alan G Michette, Pierre Jaegle, Annie Klisnick, Antoine Carillon, Pierre Dhez, Gerard Jamelot, JP Raucourt, Gregory J Tallents, J Krishnan, L Dwivedi, HZ Chen, Michael H Key, Ryosuke Kodama, Peter A Norreys, SJ Rose, Jie Zhang, Geoffrey J Pert, Stuart A Ramsden

Observation of new laser transitions and saturation effects in optically pumped NO

Applied Physics B Photophysics and Laser Chemistry 54:2 (1992) 119-125

Authors:

SM Hooker, AM Haxell, CE Webb

Abstract:

We report investigations of an NO laser employing specially profiled magnetic fields of up to 3.4T, and F2 pump laser intensities as great as 20 MW cm-2. We have observed laser oscillation at 226 nm on a rotational branch of the B'-X/it(3-11) band of NO for the first time, in addition to the previously reported oscillation at 218 nm on the B'-X/it(3-10) band. We have also observed visible laser emission on a rotational branch of the B′2Δ-B2II(3-1) band of NO. Saturation of the NO laser pulse energy with pump intensity has been observed, the total NO laser pulse energy having been increased to 490 μJ. The possibility of increasing the NO laser pulse energy towards 1 mJ per transition is discussed. ? 1992 Springer-Verlag.