Measurements of energy transport patterns in solid density laser plasma interactions at intensities of 5x10(20) W cm(-2)

K.L. Lancaster, J.S. Green, D.S. Hey, K.U. Akli, J.R. Davies, R.J. Clarke, R.R. Freeman, H. Habara, M.H. Key, R. Kodama, K. Krushelnick, C.D. Murphy, M. Nakatsutsumi, P. Simpson, R. Stephens, C. Stoeckl, T. Yabuuchi, Matthew Zepf, P.A. Norreys

Research output: Contribution to journalArticle

106 Citations (Scopus)

Abstract

K-alpha x-ray emission, extreme ultraviolet emission, and plasma imaging techniques have been used to diagnose energy transport patterns in copper foils ranging in thickness from 5 to 75 mu m for intensities up to 5x10(20) Wcm(-20). The K-alpha emission and shadowgrams both indicate a larger divergence angle than that reported in the literature at lower intensities [R. Stephens , Phys. Rev. E 69, 066414 (2004)]. Foils 5 mu m thick show triple-humped plasma expansion patterns at the back and front surfaces. Hybrid code modeling shows that this can be attributed to an increase in the mean energy of the fast electrons emitted at large radii, which only have sufficient energy to form a plasma in such thin targets.
Original languageEnglish
Article number125002
JournalPhysical Review Letters
Volume98
Issue number12
DOIs
Publication statusPublished - 23 Mar 2007

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Measurements of energy transport patterns in solid density laser plasma interactions at intensities of 5x10(20) W cm(-2)'. Together they form a unique fingerprint.

  • Cite this

    Lancaster, K. L., Green, J. S., Hey, D. S., Akli, K. U., Davies, J. R., Clarke, R. J., Freeman, R. R., Habara, H., Key, M. H., Kodama, R., Krushelnick, K., Murphy, C. D., Nakatsutsumi, M., Simpson, P., Stephens, R., Stoeckl, C., Yabuuchi, T., Zepf, M., & Norreys, P. A. (2007). Measurements of energy transport patterns in solid density laser plasma interactions at intensities of 5x10(20) W cm(-2). Physical Review Letters, 98(12), [125002]. https://doi.org/10.1103/PhysRevLett.98.125002