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Science 24 November 1989:
Vol. 246. no. 4933, pp. 1029 - 1031
DOI: 10.1126/science.246.4933.1029
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Articles

Covariance Mapping: A Correlation Method Applied to Multiphoton Multiple Ionization

L. J. FRASINSKI 1, K. CODLING 1, and P. A. HATHERLY 1

1 J. J. Thomson Physical Laboratory, University of Reading, Whiteknights, Post Office Box 220, Reading RG6 2AF, United Kingdom.

In some cases there are hidden correlations in a highly fluctuating signal, but these are lost in a conventional averaging procedure. Covariance mapping allows these correlations to be revealed unambiguously. As an example of the applicability of this technique, the dynamics of fragmentation of molecules ionized by an intense picosecond laser are analyzed.

Submitted on May 16, 1989
Accepted on August 15, 1989

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Science. ISSN 0036-8075 (print), 1095-9203 (online)