Organic materials have recently been recognized as promising candidates for nonlinear optics (NLO) applications in view of their fast response time and large non-resonant nonlinear effects in comparison with their inorganic counterparts. Novel organic materials that form molecular crystals and polymers with optimized molecular structure are therefore being synthesized and their NLO response assessed in attempts to obtain superior material performance. Another advantage of organic and polymeric materials is their ...
The origin and nature of nonlinear optical effects in organic and polymeric materials is discussed. Approaches to the applications of these nonlinear optical effects in prototypical devices is explored. In glancing through a flat windowpane we immediately confront light's interaction with glass, but ignore it. We assume that the world's image is not perceptibly altered when light passes through the glass. Yet glass does play tricks with light: a penny ...
The increasing interest in organic and polymeric electroactive materials arises from their potential applications in synthetic membranes, nonlinear optical elements, sensors, and microelectronic devices. Two types of polyheterocycle Langmuir-Blodgett films have been fabricated: 1) copolymers of pyrrole and 3-alkyl pyrrole (3-hexadecylpyrrole and octadecylpyrrole) LB films; 2) mixtures of poly(3-alkyl thiophene) and stearic acid LB films. The orientation of single- and multi-layer films on platinum substrates have been studied by Near ...
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