Summary
The seeding of high-order harmonic (HOH) radiation in a transient Xray laser amplifier was numerically investigated using the code COLAX. The code was recently modified to account (i) for the travelling-wave irradiation of a preformed plasma pumped in the transient regime, and (ii) for the injection of a HOH pulse at the X-ray laser wavelength, and at one boundary of the plasma amplifier. We show that the time-dependent description of the polarisation (TDP) leads to significantly different results in comparison to the widely used adiabatic description. Namely, with TDP, HOH produces a wake in the intensity distribution, which is not only amplified but lasts much longer than the HOH pulse. This could explain recent experimental observations in the spectral domain.
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Larroche, O., Ros, D., Klisnick, A., Sureau, A., Möller, C., Guennou, H., “Maxwell-Bloch modelling of x-ray-laser-signal buildup in single- and doublepass configurations”, Phys. Rev. A62, 043815 (13 pages), 2000.
MacGowan, B.J., Maxon, S., Hagelstein, P.L., Keane, C.J., London, R.A., Matthews, D.L., Rosen, M.D., Scofield, J.H., Whelan, D.A., “Demonstration of soft x-ray amplification in nickel-like ions”, Phys. Rev. Lett. 59, 2157-2160, 1987.
Ditmire, T., Hutchinson, M.H.R., Key, M.H., Lewis, C.L.S., MacPhee, A ., Mercer, I., Neely, D., Perry, M.D., Smith, R.A., Wark, J.S., Zepf, M., “Amplification of xuv harmonic radiation in a gallium amplifier”, Phys. Rev. A51, R4337-R4340, 1995.
Zeitoun, Ph., Falvre, G., Sebban, S., Mocek, T., Hallou, A., Fajardo, M., Aubert, D., Balcou, Ph., Burgy, F., Douillet, D., Kazamias, S., de Lacheze-Murel, G., Lefrou, T., le Pape, S., Mercere, P., Merdji, H., Morlens, A.S., Rousseau, J.P., Valentin, C., “A high-intensity highly coherent soft X-ray femtosecond laser seeded by a high harmonic beam”, Nature431, 426-429, 2004.
Kawachi, T., Nagashima, K., Kishimoto, M., Hasegawa, N., Tanaka, M., Ochi, Y., Nishikino, M., Kawazome, H., Tai, R.Z., Namikawa, K., Kato, Y., “Recent Progress in X-ray Laser Research in JAERI”, Proc. of SPIE5919, 59190L (11 pages), 2005.
Hasegawa, N., Kilpio, A.V., Nagashima, K., Kawachi, T., Kado, M., Tanaka, M., Namba, S., Takahashi, K., Sukegawa, K., Peixiang, L., Huajing, T., Kishimoto, M., Renzhong, T., Daido, H., Kato, Y., “Higher harmonics generation for the high coherent x-ray laser”, Proc. of SPIE, 4505, 204-210, 2001.
Klisnick, A., Guilbaud, O., Ros, D., Cassou, K., Kazamias, S., Jamelot, G., Lagron, J.-C., Joyeux, D., Phalippou, D., Lechantre, Y., Edwards, M., Mistry, P., Tallents, G., “Experimental study of the temporal coherence and spectral profile of the 13.9 nm transient X-ray laser”, JQSRT370-380, 2006.
Pert, G.J., “Model calculations of XUV gain in rapidly expanding cylindrical plasmas”, J. Phys. B9, 3301-3315, 1976.
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Al’Miev, I. et al. (2007). Seeding High Order Harmonic in a Transient X-Ray Laser Amplifier. In: Nickles, P., Janulewicz, K. (eds) X-Ray Lasers 2006. Springer Proceedings in Physics, vol 115. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-6018-2_25
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DOI: https://doi.org/10.1007/978-1-4020-6018-2_25
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