[1] [1] J J Rocca, V Shlyaptsev, F G Tomasel, et al.. Demonstration of a discharge pumped table-top soft X-ray laser[J]. Phys Rev Lett, 1994, 73(16): 2192-2195.

[2] [2] Luan Bohan, Zhao Yongpeng, Wu Yinchu, et al.. Experimental investigation of lasing condition for soft X-ray laser pumped by capillary discharge[J]. Chinese J Lasers, 2005, 32(9): 1189-1192.

[3] [3] Y P Zhao, S Jiang, Y Xie, et al.. Demonstration of soft X-ray laser of Ne-like Ar at 69.8 nm pumped by capillary discharge[J]. Opt Lett, 2011, 36(17): 3458-3460.

[4] [4] F G Tomasel, J J Rocca, V N Shlyaptsev, et al.. Lasing at 60.8 nm in Ne-like sulfur ions in ablated material excited by a capillary discharge[J]. Phys Rev A, 1997, 55(2): 1437-1440.

[5] [5] M Frati, M Seminario, J J Rocca. Demonstration of a 10-μJ tabletop laser at 52.9 nm in neonlike chlorine[J]. Opt Lett, 2000, 25(14): 1022-1024.

[6] [6] B E Lemoff, C P Barty, S E Harris. Femtosecond-pulse-driven, electron-excited XUV lasers in eight-times-ionized noble gases[J]. Opt Lett, 1994, 19(8): 569-571.

[7] [7] S Sebban, T Mocek, D Ros, et al.. Demonstration of a Ni-like Kr optical field ionization collisional soft X-ray laser at 32.8 nm[J]. Phys Rev Lett, 2002, 89(25): 253901.

[8] [8] P H Lin, M C Chou, M J Jiang, et al.. Seeding of a soft-X-ray laser in a plasma waveguide by high harmonic generation[J]. Opt Lett, 2009, 34(22): 3562-3564.

[9] [9] D E Kim, D S Kim, A L Osterheld. Characteristics of populations and gains in neon-like argon (Ar IX)[J]. J Appl Phys, 1998, 84(11): 5862-5866.

[10] [10] J J Rocca, D P Clark, J L A Chila, et al.. Energy extraction and achievement of the saturation limit in a discharge-pumped table-top soft X-ray amplifier[J]. Phys Rev Lett, 1996, 77(8): 1476-1479.