Efficient generation of highly ionized calcium and titanium plasma columns for collisionally excited soft-x-ray lasers in a fast capillary discharge

J. J. Rocca; O. D. Cortázar; F. G. Tomasel; B. T. Szapiro

doi:10.1103/PhysRevE.48.R2378

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Efficient generation of highly ionized calcium and titanium plasma columns for collisionally excited soft-x-ray lasers in a fast capillary discharge

J. J. Rocca, O. D. Cortázar, F. G. Tomasel, and B. T. Szapiro

Department of Electrical Engineering, Colorado State University, Fort Collins, Colorado 80523

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Phys. Rev. E 48, R2378(R) – Published 1 October, 1993

DOI: https://doi.org/10.1103/PhysRevE.48.R2378

Abstract

Fast discharges through 1.5-mm-diam capillaries have produced dense Ca and Ti plasma columns with an abundance of Ne-like ions, which are of interest for the development of small-scale, collisionally excited soft-x-ray lasers. Current pulses of 30 ns full width at half maximum and peak currents of less than 70 kA produced plasmas with line emission from ions with charge up to the F-like state. Line emission at the wavelengths of the 3p-3s and 3d-3p transitions of the Ne-like ions has been observed.

References (18)

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J. J. Rocca, D. C. Beethe and M. C. Marconi, Opt. Lett. 13, 565 (1988).
J. J. Rocca, O. D. Cortázar, B. Szapiro, K. Floyd and F. G. Tomasel, Phys. Rev. E 47, 1299 (1993).
H. Conrads, Z. Phys. 444, 200 (1967); P. Bogen, H. Conrads, G. Gatti and W. Kohlhaas, J. Opt. Soc. Am. 58, 203 (1968); S. M. Zakharov, A. A. Kolomenski, S. A. Pikuz and A. I. Samokhin, Pis'ma Zh. Tekh. Fiz. 6, 1135 (1980) [Sov. Tech. Phys. Lett. 6, 486 (1980)]; R. A. McCorkle, Appl. Phys. A 26, 261 (1981).
C. Steden and H.-J. Kunze, Phys. Lett. A 151, 1534 (1990); J. J. Rocca, M. C. Marconi, B. T. Szapiro and J. Meyer, Proc. SPIE 1551, 275 (1991); C. A. Morgan, H. R. Griem, and R. C. Elton (unpublished); J. J. Rocca, M. C. Marconi and F. G. Tomasel, IEEE J. Quantum Electron. 29, 182 (1993).
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[c1] D. L. Matthews et al., Phys. Rev. Lett. 54, 110 (1985); B. J. MacGowan et al., J. Appl. Phys. 61, 5423 (1983); T. N. Lee, E. A. McLean and R. C. Elton, Phys. Rev. Lett. 39, 1185 (1987); T. Boehly et al., Phys. Rev. A 42, 6962 (1990); D. J. Fields et al., ibid. 46, 1606 (1992).

[c2] J. Nilsen, B. J. MacGowan, L. B. Da Silva, and J. C. Moreno, Lawrence Livermore National Laboratory, Report No. UCRL-JC-112704 (1993).

[c3] J. Davis, R. Clark, J. P. Apruzese and P. C. Kepple, IEEE Trans. Plasma Sci. PS-16, 482 (1988).

[c4] S. Basu, P. L. Hagelstein, M. Muendel, J. GoodBerlet, and S. Kaushik (unpublished).

[c5] D. E. Kim, C. A. Skinner, D. Voorhees and S. Suckewer, Proc. SPIE 1551, 295 (1991).

[c6] T. Hara, K. Ando, H. Yashiro and Y. Aoyagi, Jpn. J. Appl. Phys. 28, L1010 (1989).

[c7] J. J. Rocca, D. C. Beethe and M. C. Marconi, Opt. Lett. 13, 565 (1988).

[c8] J. J. Rocca, O. D. Cortázar, B. Szapiro, K. Floyd and F. G. Tomasel, Phys. Rev. E 47, 1299 (1993).

[c9] H. Conrads, Z. Phys. 444, 200 (1967); P. Bogen, H. Conrads, G. Gatti and W. Kohlhaas, J. Opt. Soc. Am. 58, 203 (1968); S. M. Zakharov, A. A. Kolomenski, S. A. Pikuz and A. I. Samokhin, Pis'ma Zh. Tekh. Fiz. 6, 1135 (1980) [Sov. Tech. Phys. Lett. 6, 486 (1980)]; R. A. McCorkle, Appl. Phys. A 26, 261 (1981).

[c10] C. Steden and H.-J. Kunze, Phys. Lett. A 151, 1534 (1990); J. J. Rocca, M. C. Marconi, B. T. Szapiro and J. Meyer, Proc. SPIE 1551, 275 (1991); C. A. Morgan, H. R. Griem, and R. C. Elton (unpublished); J. J. Rocca, M. C. Marconi and F. G. Tomasel, IEEE J. Quantum Electron. 29, 182 (1993).

[c11] A. V. Vinogradov and V. N. Shlyaptsev, Kvant. Elektron. (Moscow) 10, 2325 (1983) [Sov. J. Quantum Electron. 13, 1511 (1983)]; B. L. Whitten, R. A. London and R. S. Walling, J. Opt. Soc. Am. B 5, 2537 (1988).

[c12] U. Feldman and G. A. Doschek, J. Opt. Soc. Am. 67, 726 (1977).

[c13] K. T. Cheng, Y.-K. Kim and J. P. Desclaux, At. Data Nucl. Data Tables 24, 111 (1979).

[c14] E. N. Ragozin, S. S. Churilov, E. Ya. Kononov, A. N. Ryabtsev and Yu.F. Zayikin, Phys. Scr. 37, 742 (1988).

[c15] E. Träbert and C. Jupén, Phys. Scr. 36, 586 (1987).

[c16] E. N. Ragozin, private communication.

[c17] J. J. Rocca, O. D. Cortázar, B. T. Szapiro, F. G. Tomasel, and D. Hartshorn, Proc. SPIE (to be published).

[c18] P. L. Hagelstein, Proc. SPIE 1551, 254 (1991).

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Efficient generation of highly ionized calcium and titanium plasma columns for collisionally excited soft-x-ray lasers in a fast capillary discharge

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