Abstract
A new mechanism for heating the electron component of plasmas formed upon the application of a superintense ultrashort laser pulse to atomic clusters is proposed. Clusters considered here consist of deuterium atoms. Upon the emission of a large number of electrons, an irradiated cluster, which acquires a positive charge, explodes (Coulomb explosion). Deuterons that are ejected as the result of this possess high kinetic energies, so that collisions between them can result in 3He formation accompanied by neutron emission. The new mechanism of the heating of the electron plasma from clusters is based on the conjecture that, when an ionization electron is reflected from the inner surface of the cluster ion in the presence of a laser field, it predominantly absorbs (rather than emits) laser photons.
Similar content being viewed by others
References
T. Ditmire et al., Nature (London) 398, 489 (1999).
T. Ditmire et al., Nature (London) 386, 54 (1997).
M. V. Fedorov, Atomic and Free Electrons in a Strong Light Field (World Sci., Singapore, 1997).
V. P. Krainov, J. Phys. B 33, 1585 (2000).
V. P. Silin, An Introduction to the Kinetic Theory of Gases (Nauka, Moscow, 1971).
B. M. Smirnov, Usp. Fiz. Nauk 170, 495 (2000).
Yu. P. Raizer, Laser-Induced Discharge Phenomena (Nauka, Moscow, 1974; Consultants Bureau, New York, 1977).
N. B. Delone and V. P. Krainov, Multiphoton Processes in Atoms, 2nd ed. (Springer-Verlag, Berlin, 2000).
V. P. Krainov and M. B. Smirnov, Usp. Fiz. Nauk 170, 969 (2000).
T. Ditmire et al., Phys. Rev. A 53, 3379 (1996).
Y. L. Shao et al., Phys. Rev. Lett. 77, 3343 (1996).
M. Lezius et al., Phys. Rev. Lett. 80, 261 (1998).
T. Ditmire et al., Phys. Rev. A 57, 369 (1998).
G. Pretzler et al., Phys. Rev. E 58, 1165 (1998).
Author information
Authors and Affiliations
Additional information
__________
Translated from Yadernaya Fizika, Vol. 64, No. 4, 2001, pp. 643–645.
Original Russian Text Copyright © 2001 by Krainov, Smirnov.
Rights and permissions
About this article
Cite this article
Krainov, V.P., Smirnov, M.B. Surface heating of deuterium clusters by the field of a superintense ultrashort laser pulse for implementing the nuclear reaction d+d → 3He+n . Phys. Atom. Nuclei 64, 585–587 (2001). https://doi.org/10.1134/1.1368216
Received:
Issue Date:
DOI: https://doi.org/10.1134/1.1368216