Persistent hole burning in multiple-scattering optical media

We analyzed the shape and width of room-temperature persistent holes in photoreactive and multiple-scattering media in frequency and wave-vector domains. The shape and width of holes depend on sample thickness, transport mean free path, geometrical configuration, and absorption lengths. The measurements of the angular dependence of hole burning in a disordered ${\mathrm{CdS}}_{0.85}{\mathrm{Se}}_{0.15}$- doped glass sample were in quantitative agreement with theory.