Optical nonlinearity photorefractive

By applying this approach new molecules for electro-optic and photorefractive applications could be developed. For a review of the design of nonlinear molecules using the BLA model see for instance [19]. 

If a material possesses second-order optical nonlinearity and is photocon-ductive, it may be photorefractive [136], Photorefractivity is a x<3> phenomenon. The phenomenon occurs as photogenerated carriers redistribute and... 

On the other hand, formation of photorefi active silicone composite with good performance was reported A carbazole-substituted polysiloxane that was sensitized by 2,4,7-trinitro-9-fluorenone was used as a photoconducting medium and l-[4-(2-nilrovinyl)phenylpiperidine was added as an optically nonlinear chromophore. The photorefractive property of polymer was determined by diffraction efficiency using a 100 pm-thick film. The maximum diffraction efficiency (rj max) of 71% was obtained at the electric field of 70 V/pm. 

Organic-inorganic hybrid materials have attracted extensive fundamental and practical interest/ Molecular design of hybrid materials could produce materials with tunable properties for optoelectronic devices, including optical waveguides,electroluminescent devices,nonlinear optical materials, photorefractive materials, and semiconductors/ ... 

Khoo, I. C., M. Y. Shih, A. Shishido, P.H. Chen, and M. V. Wood. 2001. Liquid crystal photorefractivity Towards supra-optical nonlinearity. Opt. Mater. 18 85-90 Khoo, 1. C., M. Y. Shih, M. V. Wood, and P. H. Chen. 2000. Extremely nonlinear photosensitive nematic liquid crystal film. Synth. Met. 7413 1-6. 

James H. Andrews, Youngstown State University, Youngstown, Ohio, Nonlinear Optical Properties, Photorefraction... 

The relatively simple study of fluorescence and phosphorescence (based on the action of colour centres) has nowadays extended to nonlinear optical crystals, in which the refractive index is sensitive to the light intensity or (in the photorefractive variety (Agullo-Lopez 1994) also to its spatial variation) a range of crystals, the stereotype of which is lithium niobate, is now used. 

Nonlinear ion traps, 15 662 Nonlinear materials, 14 680 Nonlinear optical materials, 17 442-460 advantage of, 17 448 classification of, 17 443—444 economic aspects of, 17 457-458 photorefractive materials, 17 457 second-order, 17 444r-453 third-order, 17 453—457 Nonlinear optical phenomena, 17 443 Nonlinear optics... 

LiNbOj is a widely used ferroelectric crystal with various applications in the nonlinear optics and integrated optics (10). Another attractive material for 10 devices is LiTaOs. Its electrooptic (EO) and nonlinear (NL) coefficients are comparable to those of LiNbOj, and its photorefractive damage threshold is more than an order of magnitude higher than that of LiNbOj in the visible range. 

Nonlinear Optical, Photorefractive and Two-Photon Absorption Polymers Volume Editor Lee, K.-S. 

The polymers derived from ruthenium(II)-polypyridine complexes have demonstrated promising potential for application in solar energy conversion, sensors, polymer-supported electrodes, nonlinear optics, photorefraction, and electroluminescence [27-32]. 

Note 3 A polymer that exhibits a nonlinear optical effect due to anisotropic electric susceptibilities when subjected to electric field together with light irradiation is called an electro-optical polymer. A polymer that exhibits electro-optical behavior combined with photoconductivity is called a photorefractive polymer. 

Buchnev O, Glushchenko A, Reznikov Y, Reshetnyak V, Tereshchenko O, West J (2003) Nonlinear optics of liquid and photorefractive crystals 5257 7... 

P Yeh. Introduction to Photorefractive Nonlinear Optics. New York Wiley, 1993. 

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