Abstract

We present experimental results from recent studies of soft-x-ray lasing in Ne-like Zn (Z = 30). The lasing plasma was produced by irradiation of slab targets as much as 2 cm long with intensities of ~1.4 × 1013 W cm−2 at λ = 1.06 μm in pulses of 600 ps (FWHM). Amplification at three 3p–3s transitions was observed. While the J = 2 to J = 1 transitions at 262 and 267 Å provided gain coefficients of 2.3 and 2.6 cm−1, respectively, the J = 0 to J = 1 transition at 212 Å exhibited a significantly larger gain of 4.9 cm−1 and yielded a much brighter signal. Furthermore, its temporal characteristics were revealed to be unlike those of the J = 2 to J = 1 transitions. The results indicate that the J = 0 to J = 1 line originates from a different plasma region than do the J = 2 to J = 1 lines and that the temporal evolution of the pumping process into its upper lasing level J = 0 differs considerably from that to the J = 2 levels. In addition, the gain and the gain–length product of ~10 achieved in this experiment are, to our knowledge, the highest ever reported for a driving laser of similar energy (~450 J).

© 1994 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Lasing properties of the J = 0–1 and the J = 2–1 lines of a neonlike germanium soft-x-ray laser

K. Murai, H. Shiraga, G. Yuan, H. Daido, H. Azuma, E. Miura, R. Kodama, M. Takagi, T. Kanabe, H. Takabe, Y. Kato, D. Neely, D. M. O’Neill, C. L. S. Lewis, and A. Djaoui
J. Opt. Soc. Am. B 11(11) 2287-2297 (1994)

Measurements on collisionally excited soft-x-ray lasers

E. A. McLean, T. N. Lee, J. A. Stamper, C. K. Manka, and H. R. Griem
J. Opt. Soc. Am. B 9(3) 350-359 (1992)

Temporally and spatially resolved investigation of the J = 0–1 and J = 2–1, 3p–3s laser emissions in neonlike germanium

Yuelin Li, Georg Pretzler, Ernst E. Fill, and Joseph Nilsen
J. Opt. Soc. Am. B 13(4) 742-750 (1996)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (11)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (5)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription