6533b7d0fe1ef96bd125a2a4
RESEARCH PRODUCT
Influence of the age of amorphous nonannealed As2S3 thin films on holographic properties
Andris OzolsNina NordmanOlli Nordmansubject
Materials scienceHolographic gratingChalcogenidebusiness.industryHolographyGratingDiffraction efficiencyEvaporation (deposition)Atomic and Molecular Physics and OpticsElectronic Optical and Magnetic Materialslaw.inventionAmorphous solidchemistry.chemical_compoundOpticschemistrylawElectrical and Electronic EngineeringPhysical and Theoretical ChemistryThin filmbusinessdescription
The dependences of the maximal first order diffraction efficiency and the corresponding specific recording energy on the holographic grating period were studied. Grating period was varied from 0.40 to 70.0 μm. Both fresh and aged films were used. A large holographic recording efficiency decrease in the course of aging is found to take place. These changes are due to the effective film grain size increase caused by the relaxational structural changes and atmospheric oxygen exposure. Results are explained with the aid of stress fields induced by the evaporation and holographic recording. The obtained results can be used to optimize the hologram recording in amorphous chalcogenide films.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1998-01-01 | Optics Communications |