  One of the most intriguing problems of light transport in solids is the
localization that has been observed in various disordered photonic
structures1-11. The light localization in defect-free icosahedral quasicrystals
has recently been predicted theoretically without experimental verification10.
Here we report on the fabrication of submicron-size dielectric icosahedral
quasicrystals and demonstrate the results of detailed studies of the photonic
properties of these structures. Here, we present the first direct experimental
observation of intrinsic light localization in defect-free quasicrystals. This
result was obtained in time-resolved measurements at different laser
wavelengths in the visible. We linked localization with the aperiodicity of the
icosahedral structure, which led to uncompensated scattering of light from an
individual structural element over the entire sphere, providing multiple
scattering inside the sample and, as a result, the intrinsic localization of
light.
