  We report the results of a double-slit-like experiment in the infrared range,
which confirm those of a previous one by evidencing an anomalous behaviour of
photon systems under particular (energy and space) constraints. These outcomes
(independently confirmed by crossing photon beam experiments in both the
optical and the microwave range) apparently rule out the Copenhagen
interpretation of the quantum wave, i.e. the probability wave, by admitting an
interpretation in terms of the Einstein-de Broglie-Bohm hollow wave for
photons. Moreover, this second experiment further supports the interpretation
of the hollow wave as a deformation of the Minkowski space-time geometry.
