Optically nonlinear organic materials

Functional Waveguides with Optically Nonlinear Organic Materials... 

A detailed X-ray diffraction experiment and quantum-chemical calculations of N,N-dhnethyl-4-nitroaniline derivatives, also model compounds for optically nonlinear organic materials, revealed that the introduction of a substituent into the ortho- or meta-position with respect to the dimethylamino group resulted in decreasing the contribution of the... 

We have presented a review of the salient features of nonlinear integrated optics. It appears that nonlinear organic materials can play an important role in second- and third-order guided-wave devices. This field requires a great deal of material characterization and processing, however, before significant advances are realized. 

In this study we suppose nonlinear organic material shows optical Kerr effect as n = n0+n2lEl2 and n2 = X<3)/(2n0). Moreover for simplification, we suppose the waveguides allow single mode propagations and TE polarization. After appropriate handling we get the following nonlinear coupled mode equations [ 12] ... 

Mrii 72P2S6(DAMS )o,46H203 optically nonlinear. This material could not have been prepared in one step because the reaction temperature required to produce the Mn2P2Se would have destroyed the organic component. In a similar fashion, when ethidium bromide is intercalated into DNA it imparts new properties on the DNA, specifically, rendering the DNA fluorescent since ethidium bromide itself is fluorescent. 

Zyss, J. Nonlinear organic materials for integrated optics a review. J. Molec Electronics 1, 25-95 (1985). 

K. Liu and Y. Luo, Structure-Property Relationship in OrganometaUic Compounds Regarding SHG , in Proceedings of SPIE - The International Society for Optical Engineering, SPIE - The International Society for Optical Engineering, 2007, vol. 6653, Linear and Nonlinear Optics of Organic Materials VII, p. 66530R/1. 

For this reason the nonlinear optics of organic materials has become and still is a very active field of work of interest in both basic and applied science. Several theoretical and experimental efforts have been devoted to the evaluation of molecular hyperpolarizabilities and to the study of the mechanisms that make organic materials suitable for optoelectronic and photonic applications [239-242]. 

Stegeman, G.I. Zanoni, R. Seaton, C.T., "Nonlinear Organic Materials in Integrated Optics Structures", p. 53 in Heeger, A.J. Orenstein, J. Ulrich, D.R. (Eds.), Materials Research Society Symposium Proceedings Vol. 109 Nonlinear Optical Properties of Polymers, Materials Research Society, Pittsburg, Pennsylvania (1988). 

B. Champagne, D.H. Mosley, J.G. Fripiat, and J.M. Andre, SPIE Proceedings, the International Society for Optical Engineering, Nonlinear Optical Properties of Organic Materials V1775, Til (1992). 

The results of this research combined with the growing literature on structure-property relations in organic materials is moving us closer to the ultimate goal of developing a predictive capability for the nonlinear optical properties of molecules. 

In conclusion, we stress that the complementary NLO characterization techniques of pump-probe, Z-scan, and 2PF allow for the unambiguous determination of nonlinear optical processes in organic materials. The important molecular parameters of 2PA cross section, fluorescence efficiency, reorientation lifetimes, excited state cross sections, etc. can be determined. 

Chiang, W. Thompson, M. E. Van Engen, D. Synthesis and Nonlinear Optical Properties of Inorganic Co-ordination Polymers. In Organic Materials for Nonlinear Optics II Hann, R. A., Bloor, D., Eds. Royal Society of Chemistry London, 1991 pp 210-216. 

Over the past decade it has been learned that organic materials containing appropriately constituted or substituted conjugation systems may exhibit highly enhanced electronic nonlinear optical polarization responses Since the microscopic second-order... 

Nonlinear Organic Crystals Theoretical Concepts, Materials, and Optical Properties... 

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