Photoinduced surface relief modulation in amorphous chalcogenide thin films during holographic recording

Holographic Recording in Amorphous Chalcogenide Semiconductor Thin Films

Digital Holographic Recording in Amorphous Chalcogenide Films

Generalized model for photoinduced surface structure in amorphous thin films.

We present a generalized model to explain the spatial and temporal evolution of photoinduced surface structure in photosensitive amorphous thin films. The model describes these films as an incompressible viscous fluid driven by a photoinduced pressure originating from dipole rearrangement. This derivation requires only the polarizability, viscosity and surface tension of the system. Using value...

Photoinduced doping of thin amorphous WO, films

During cxposurc of thin amorphous WO, films to UV light, both the optical absorptivity and thc electrical conductibity increase, Using optically excited surface plasmons. we were ablc to mcnsure even subtle changes of the absorpt~vity of 10 ntn thtck films simuFtaneously with their electrical resistivity a t varivus temperatuscs. Our measurements show that the temperature dependence and thc dcp...

Ag-photodoping in Ge-chalcogenide amorphous thin films—Reaction products and their characterization

We make a brief review on the effect of silver photodiffusion in Ge-chalcogenide glasses and report some of our recent results in this aspect. Using Raman spectroscopy and X-ray diffraction analysis we demonstrate that the hosting backbone undergoes depletion in chalcogen due to the specific conditions of photodiffusion and the diffusion products are silver chalcogenides. While in the Ge–Se sys...