Siemens Aktiengesellschaft

Jens Nordmann

Heinz Hacker

Rainer Puehl

Cross-linked epoxy resins having nonlinear optical properties may be used in nonlinear optical media. These cross-linked epoxy resins may have the following structure: ##STR1## Z.sup.1 and Z.sup.2 being NLO-chromophores.

Cross-linked epoxy resins having non-linear optical properties

The invention provides epoxy resins having the following structure: ##STR1## The cross-linked epoxy resins have non-linear optical properties. The group 'Z' constitutes a nonlinear optical chromophone having stilbene, azo, azomethine or propargyl moieties as linking units.

Cross-linked epoxy resins with non-linear optical properties

The epoxy resins according to the invention demonstrate the following structure: ##STR1## The cross-linked epoxy resins exhibit non-linear optical properties.

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Neunkirchen, Germany

Jens Nordmann