The present invention concerns a process for realization of polymeric materials with second order nonlinear electro-optical properties comprising the following steps: mixing of a chromophore with nonlinear optical properties with two or three hydroxy groups; isolation of said pure bi- or tri-isocyanate NLO chromophores obtained according to the above step; dissolution of said bi- or tri-isocyanate NLO chromophores obtained according to the above step in one or more isocyanate group not reactive solvents containing reactive substances; coating of a thin layer of said prepolymer mixture on a substrate and evaporation of said not reactive solvents; cross-linking and poling of said thin layer on substrate, by means of heating and application of an electric field; cooling of said thin cross-linked and poled layer at ambient temperature maintaining the applied poling electric field; switching off the poling electric field.

Borbone, F., Roviello, A., Centore, R., Carella, A., DE MATTEIS, F., Casalboni, M., et al. (2011). Process for realization of polymeric materials with second order nonlinear electro-optical properties and electro-optical devices made with said material.

Process for realization of polymeric materials with second order nonlinear electro-optical properties and electro-optical devices made with said material

DE MATTEIS, FABIO;CASALBONI, MAURO;
2011-11-21

Abstract

The present invention concerns a process for realization of polymeric materials with second order nonlinear electro-optical properties comprising the following steps: mixing of a chromophore with nonlinear optical properties with two or three hydroxy groups; isolation of said pure bi- or tri-isocyanate NLO chromophores obtained according to the above step; dissolution of said bi- or tri-isocyanate NLO chromophores obtained according to the above step in one or more isocyanate group not reactive solvents containing reactive substances; coating of a thin layer of said prepolymer mixture on a substrate and evaporation of said not reactive solvents; cross-linking and poling of said thin layer on substrate, by means of heating and application of an electric field; cooling of said thin cross-linked and poled layer at ambient temperature maintaining the applied poling electric field; switching off the poling electric field.
Selex Sistemi Integrati S.P.A
21-nov-2011
13-mag-2014
US 8722316 B2
Settore FIS/03 - FISICA DELLA MATERIA
English
Borbone, F; Roviello, A; Centore, R; Carella, A; DE MATTEIS, F; Casalboni, M; Stracci, G; Dispenza, M
Brevetti
Borbone, F., Roviello, A., Centore, R., Carella, A., DE MATTEIS, F., Casalboni, M., et al. (2011). Process for realization of polymeric materials with second order nonlinear electro-optical properties and electro-optical devices made with said material.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/128636
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