  We have studied the Thouless energy in Josephson superconductor-normal
metal-superconductor (SN-N-NS) bridges analytically and numerically, taking
into account the influence of the sub-electrode regions. We have found a
significant suppression of the Thouless energy with increasing interfacial
resistance, in agreement with experimental results. The analysis of the
temperature dependence of the critical current in Josephson junctions in
comparison with the expressions for the Thouless energy may allow the
determination of the interface parameters of S and N-layers.
