Abstract

We report a time- and space-resolved investigation of the J = 0–1 and J = 2–1 lasers in neonlike germanium at 19.6, 23.2, and 23.6 nm. Germanium slabs were irradiated by the Asterix IV iodine laser at an intensity of approximately 2.0 × 1013 W cm−2 without and with a prepulse, which was 5.23 ns before the main pulse. The position of the lasing region was measured as a function of the prepulse intensity. It was found that lasing on the J = 0–1 transition at 19.6 nm occurs earlier in time and closer to the target surface than on the two J = 2–1 transisitions at 23.2 and 23.6 nm. The position for the 23.6-nm laser is the farthest from the target surface. A larger prepulse shifted all lasers farther from the target surface. Numerical simulations showed good qualitative agreement with experimental results when a prepulse was applied. For the case without a prepulse, calculations indicated the importance of beam refraction in modifying the effective gain of the soft-x-ray laser beam.

© 1996 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
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)

Use of the prepulse technique to enhance the weak 18.2-nm laser line in neonlike selenium

Joseph Nilsen and Juan C. Moreno
Opt. Lett. 19(15) 1137-1139 (1994)

Observation of amplified spontaneous emission in the soft-x-ray region from a recombining lithiumlike aluminum plasma pumped by multipulse irradiation

T. Kawachi, K. Ando, Y. Aoyagi, M. Aoyama, T. Hara, and A. Sasaki
J. Opt. Soc. Am. B 14(7) 1863-1869 (1997)

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 (9)

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

Tables (1)

You do not have subscription access to this journal. Article tables 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 (2)

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