Holographic recording in photorefractive thin films: Edge effects
Por:
Aguilar M., Carrascosa M., Agulló-López F., Magaña L.F.
Publicada:
1 ene 1995
Resumen:
The initial holographic recording rate has been analytically studied for a photorefractive thin slab. The finite thickness is explicitly taken into account by using a two-dimensional formulation (coordinates x and z parallel and perpendicular to the slab faces, respectively). It is shown that for a thickness comparable to the grating period, the solution appreciably departs from the usual one-dimensional result, i.e., edge effects are remarkable. In particular, significant space-charge fields perpendicular to the slab faces are generated. These effects may substantially modify the diffraction properties of the recorded photorefractive gratings, as exemplified for a GaAs film. © 1995 American Institute of Physics.
Filiaciones:
Departamento de Física de Materiales, Universidad Autónoma de Madrid, 28049 Madrid, Spain
Instituto de Física, Universidad Nacional Autónoma de México, Mexico D.F. 01000, Mexico
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