Abstract

When clusters of deuterium are irradiated with an intense, ultrafast laser pulse, the clusters explode, generating ions with kinetic energies high enough to produce nuclear-fusion events. Here we present experimental measurements of the dependence of the fusion yield of an exploding deuterium-cluster plasma on pulse energy up to the 10-J level for incident pulse durations of 100 fs and 1 ps. These energies correspond to peak vacuum intensities of 2×1020 and 2×1019 W/cm2, respectively. We also present measurements of the resulting plasma ion spectra that possess features indicative of a Coulomb explosion and discuss the yield scaling and its relation to previous findings based on the differences in laser focal geometry and pulse duration.

© 2003 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Control of laser heating in clusters through variation in temporal pulse shape

K. J. Mendham, J. W. G. Tisch, M. B. Mason, N. Hay, and J. P. Marangos
Opt. Express 11(12) 1357-1364 (2003)

Ion pinhole imaging diagnostics on fast ion source in femtosecond laser plasma of cluster targets

Sergey Makarov, Sergey Pikuz, Anatoly Faenov, Tatiana Pikuz, Yuji Fukuda, Igor Skobelev, Irina Zhvaniya, Sergey Varzar, Masaki Kando, and Ryousuke Kodama
Opt. Express 25(14) 16419-16426 (2017)

Controlling the length of plasma waveguide up to 5 mm, produced by femtosecond laser pulses in atomic clustered gas

Walid Tawfik Mohamed, Guanglong Chen, Jaehoon Kim, Geng Xiao Tao, Jungkwen Ahn, and Dong Eon Kim
Opt. Express 19(17) 15919-15928 (2011)

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 (4)

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 (9)

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