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Updated: Jan 19, 2026
Measuring Spatially- and Directionally-varying Light Scattering from Biological Material
Published on: May 20, 2013
Experimental investigation of the elastic enhancement factor in a microwave cavity emulating a chaotic scattering
Małgorzata Białous1, Barbara Dietz2, Leszek Sirko1
1Institute of Physics, Polish Academy of Sciences, Aleja Lotników 32/46, 02-668 Warszawa, Poland.
Abstract:
A characteristic of chaotic scattering is the excess of elastic over inelastic scattering processes quantified by the elastic enhancement factor F_{M}(T,γ), which depends on the number of open channels M, the average transmission coefficient T, and internal absorption γ. Using a microwave cavity with the shape of a chaotic quarter-bow-tie billiard, we study the elastic enhancement factor experimentally as a function of the openness, which is defined as the ratio of the Heisenberg time and the Weisskopf (dwell) time and is directly related to M and the size of internal absorption. In the experiments 2≤M≤9 open channels with an average transmission coefficient 0.34
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