Enhancement of localization in one-dimensional random potentials with long-range correlations.
We experimentally study the effect of enhancement of localization in weak one-dimensional random potentials. Our experimental setup is a single-mode waveguide with 100 tunable scatterers periodically inserted into the waveguide. By measuring the amplitudes of transmitted and reflected waves in the spacing between each pair of scatterers, we observe a strong decrease of the localization length when white-noise scatterers are replaced by a correlated arrangement of scatterers.
Fachbereich Physik, Philipps-Universität Marburg, Renthof 5, D-35032 Marburg, Germany.
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Kuhl
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FM
Izrailev
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Krokhin