In this paper, the use of a pure benzimidazole based dimethacrylic push pull chromophore has been investigated for the preparation of thin films exhibiting quadratic nonlinear optical (NLO) properties. To stabilize these NLO properties, the chromophore orientation has been frozen in a noncentrosymmetric arrangement by cross-linking the material using thermal polymerization induced by suitable initiators. The films present a very stable quadratic optical activity up to T = 152 degrees C with SHG coefficient d(33) of 14 pm/V measured at 1.9 mu m.
Crosslinkable organic glasses with quadratic nonlinear optical activity / Carella, Antonio; Centore, Roberto; L., Mager; A., Barsella; A., Fort. - In: ORGANIC ELECTRONICS. - ISSN 1566-1199. - STAMPA. - 8:(2007), pp. 57-62.
Crosslinkable organic glasses with quadratic nonlinear optical activity
CARELLA, ANTONIO;CENTORE, ROBERTO;
2007
Abstract
In this paper, the use of a pure benzimidazole based dimethacrylic push pull chromophore has been investigated for the preparation of thin films exhibiting quadratic nonlinear optical (NLO) properties. To stabilize these NLO properties, the chromophore orientation has been frozen in a noncentrosymmetric arrangement by cross-linking the material using thermal polymerization induced by suitable initiators. The films present a very stable quadratic optical activity up to T = 152 degrees C with SHG coefficient d(33) of 14 pm/V measured at 1.9 mu m.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
