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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 53, Iss. 15 — May. 20, 2014
  • pp: 3247–3254

Analytic study of traveling-wave velocity variation in line-focusing schemes for plasma x-ray lasers

Fei Jia, Felix Staub, Michael Siegrist, and Jürg E. Balmer  »View Author Affiliations

Applied Optics, Vol. 53, Issue 15, pp. 3247-3254 (2014)

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Efficient amplification of coherent short-wavelength pulses along a plasma gain column requires traveling-wave excitation with the sweep velocity matched to the signal group velocity. Through simulations incorporating the gain dynamics of the system, we show that the group velocity is not constant but increases monotonically along the line focus due to strong saturation. We demonstrate a line-focusing configuration that results in traveling wave excitation with the sweep velocity well matched to the spatially varying group velocity. Moreover, we show through numerical simulations that the improved velocity matching yields a significant improvement in signal amplification.

© 2014 Optical Society of America

OCIS Codes
(080.0080) Geometric optics : Geometric optics
(140.0140) Lasers and laser optics : Lasers and laser optics

ToC Category:
Lasers and Laser Optics

Original Manuscript: January 22, 2014
Revised Manuscript: April 14, 2014
Manuscript Accepted: April 15, 2014
Published: May 15, 2014

Fei Jia, Felix Staub, Michael Siegrist, and Jürg E. Balmer, "Analytic study of traveling-wave velocity variation in line-focusing schemes for plasma x-ray lasers," Appl. Opt. 53, 3247-3254 (2014)

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  1. D. L. Matthews, P. L. Hagelstein, M. D. Rosen, M. J. Eckart, N. M. Ceglio, A. U. Hazi, H. Medecki, J. E. Trebes, B. L. Whitten, and A. J. MacGowan, “Demonstration of a soft x-ray amplifier,” Phys. Rev. Lett. 54, 110–113 (1985). [CrossRef]
  2. B. J. MacGowan, S. Maxon, P. L. Hagelstein, C. J. Keane, R. A. London, D. L. Matthews, M. D. Rosen, J. H. Scofield, and D. A. Whelan, “Demonstration of soft x-ray amplification in nickel-like ions,” Phys. Rev. Lett. 59, 2157–2160 (1987). [CrossRef]
  3. J. Nilsen, B. J. MacGowan, L. B. Da Silva, and J. C. Moreno, “Prepulse technique for producing low-Z Ne-like x-ray lasers,” Phys. Rev. A 48, 4682–4685 (1993). [CrossRef]
  4. P. V. Nickles, V. N. Shlyaptsev, M. Kalachnikov, M. Schnrer, I. Will, and W. Sandner, “Short pulse X-ray laser at 32.6  nm based on transient gain in Ne-like titanium,” Phys. Rev. Lett. 78, 2748–2751 (1997). [CrossRef]
  5. R. Keenan, J. Dunn, P. K. Patel, D. F. Price, R. F. Smith, and V. N. Shlyaptsev, “High-repetition-rate grazing-incidence pumped x-ray laser operating at 18.9  nm,” Phys. Rev. Lett. 94, 103901 (2005). [CrossRef]
  6. S. B. Healy, K. A. Janulewicz, J. A. Plowes, and G. J. Pert, “Transient high gains at 196 produced by picosecond heating of a preformed germanium plasma,” Opt. Commun. 132, 442–448(1996). [CrossRef]
  7. J. Nilsen, “Analysis of a picosecond-laser-driven Ne-like Ti x-ray laser,” Phys. Rev. A 55, 3271–3274 (1997). [CrossRef]
  8. B. A. Reagan, K. A. Wernsing, A. H. Curtis, F. J. Furch, B. M. Luther, D. Patel, C. S. Menoni, and J. J. Rocca, “Demonstration of a 100  Hz repetition rate gain-saturated diode-pumped table-top soft x-ray laser,” Opt. Lett. 37, 3624–3626 (2012). [CrossRef]
  9. M. P. Kalachnikov, P. V. Nickles, M. Schnurer, W. Sandner, V. N. Shlyaptsev, C. Danson, D. Neely, E. Wolfrum, J. Zhang, A. Behjat, A. Demir, G. J. Tallents, P. J. Warwick, and C. L. S. Lewis, “Saturated operation of a transient collisional x-ray laser,” Phys. Rev. A 57, 4778–4783 (1998). [CrossRef]
  10. R. Tommasini and E. Fill, “Excitation-velocity and group-velocity mismatch in amplified spontaneous emission lasers: a discussion on the transient gain x-ray lasers,” Phys. Rev. A 62, 034701 (2000). [CrossRef]
  11. R. Tommasini and E. Fill, “Effective traveling-wave excitation below the speed of light,” Opt. Lett. 26, 689–691 (2001). [CrossRef]
  12. I. N. Ross and E. M. Hodgson, “Some optical designs for the generation of high quality line foci,” J. Phys. E 18, 169–173 (1985). [CrossRef]
  13. L. W. Casperson and A. Yariv, “Pulse propagation in a high-gain medium,” Phys. Rev. Lett. 26, 293–295 (1971). [CrossRef]
  14. J. A. Koch, B. J. MacGowan, L. B. Da Silva, D. L. Matthews, J. H. Underwood, P. J. Batson, and S. Mrowka, “Observation of gain-narrowing and saturation behavior in Se x-ray laser line profiles,” Phys. Rev. Lett. 68, 3291–3294 (1992). [CrossRef]
  15. G. J. Pert, “Collisional-cross-relaxation effects in amplified-spontaneous-emission lasers,” Phys. Rev. A 50, 4412–4414 (1994). [CrossRef]
  16. F. Strati and G. J. Tallents, “Analytical modeling of group-velocity effects in saturated soft-x-ray lasers pumped with a picosecond traveling-wave excitation,” Phys. Rev. A 64, 013807 (2001). [CrossRef]
  17. G. J. Pert, “Output characteristics of amplified-stimulated-emission lasers,” J. Opt. Soc. Am. B 11, 1425–1435 (1994). [CrossRef]
  18. J. C. Chanteloup, E. Salmon, C. Sauteret, A. Migus, Ph. Zeitoun, A. Klisnick, M. Carillon, S. Hubert, D. Ros, P. Nickles, and M. Kalachnikov, “Pulse-front control of 15-TW pulses with a tilted compressor, and application to the subpicosecond traveling-wave pumping of a soft-x-ray laser,” J. Opt. Soc. Am. B 17, 151–157 (2000). [CrossRef]

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