Obtaining relief structures in silver halide materials

Giraldo, L.M.; Velásquez, D.

Obtaining relief structures in silver halide materials

Fecha

2013-01-01

Autores

Giraldo, L.M.

Velásquez, D.

ISSN de la revista

00303917
21718814

Editor

Sociedad Espanola de Optica

Resumen

Diffraction transmission gratings were recorded in AGFA-8E75 film, chemically treated under processes with D-19 + potassium ferrocyanide and a chemical processing technique proposed for PE-2 film to obtain embossed stripes. Holographic structures were measured topographically by the technique of atomic force microscopy in noncontact mode (NC-AFM) and we observe changes in the depths under variations in exposures and used photochemistry. We find that the best performance in terms of relief depth obtained is given by the conventional process which reached depths between 0.15 µm and 0.3 µm for spatial frequencies of the order of 400