Indium phthalocyanines and naphthalocyanines for optical limiting

In this work, an overview of optical limiting processes in phthalocyanines is given. The synthesis and the linear and nonlinear optical properties of a series of highly soluble axially substituted indium(III) phthalocyanines and the analogous series of naphthalocyanines are described. Several techniques, such as transient absorption, Z-scan, and degenerate four-wave mixing (DFWM), were used for assessing the optical properties and optical limiting performance of the indium phthalo- and naphthalocyanines. (C) 2001 Elsevier Science B.V. All rights reserved.