In:
MRS Proceedings, Springer Science and Business Media LLC, Vol. 328 ( 1993)
Kurzfassung:
The photorefractive properties of photoconducting polymers doped with nonlinear azo dyes are investigated by means of polarization and field-dependent four-wave Mixing experiments. The nonlocal response of the photorefractive effect is shown by two-beam coupling experiments. High diffraction efficiencies ( 〉 5%) and net coupling gain (6 cm -l ) are demonstrated at low power with a semiconductor laser diode in 105 μm films. Under some conditions, gratings due to photoisomerization of the azo dye molecules are also present and their properties are discussed.
Materialart:
Online-Ressource
ISSN:
0272-9172
,
1946-4274
DOI:
10.1557/PROC-328-577
Sprache:
Englisch
Verlag:
Springer Science and Business Media LLC
Publikationsdatum:
1993