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Second Harmonic Generation by Polymer Composites

Published online by Cambridge University Press:  25 February 2011

P. D. Calvert  and
B. D. Moyle
P. D. Calvert
Affiliation:
School of Chemistry and Molecular Sciences, University of Sussex, Brighton, BNI 9QJ, U.K.
B. D. Moyle
Affiliation:
School of Chemistry and Molecular Sciences, University of Sussex, Brighton, BNI 9QJ, U.K.
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Abstract

Second harmonic generation was observed from composites consisting of 3-nitroaniline or 3-methyl-4-nitroaniline grown within a polymer matrix. In the amorphous polymers, polystyrene and poly(methyl methacrylate), the crystals formed as fine grains or needles. The intensity of the second harmonic, from Nd-YAG light at 1.06 μm, was measured as a function of the composition from 10–90 wt% of nitroaniline. The angular distribution of the light output was very dependent on the morphology of the precipitate, with a strong concentration of the output in the forward direction for samples containing locally aligned, needle-like crystals. The behaviour in SHG and in light scattering was compared.

Composites with crystalline polymers were prepared as unoriented or oriented films. Nitroanilines and potassiun dihydrogen orthophosphate were crystallised from a number of polymers. The composite structure is governed particularly by the extent of liquid phase miscibility. The potential for optical applications of these materials are discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 109: Symposium K – Nonlinear Optical Properties of Polymers , 1987 , 357
Copyright
Copyright © Materials Research Society 1988

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References

REFERENCES

1. Garito, A.F., Singer, K.D., Tang., C.C. ACS Sym. 223, 1, (1983).Google Scholar
2. Hewig, G.H., Jain., K. Optics Communications 47, 347, (1983).Google Scholar
3. Vizgert, R.V., Davydov, B.L., Kotovshchikov, S.G., Sov., M.P. Starodubtseva. J. Quantum Electron. 12, 214, (1982)Google Scholar
4. Jain, K., Crowley, J.I., Hewig, G.H., Cheng, Y.Y., Twieg., R.J. Optics and Laser Technology 297, 1981.Google Scholar
5. Davydov, B.L., Kotovshchikov, S.G., Sov., V.A. Nefedov. J. Quantum Electron. 7, 129, (1977).Google Scholar
6. Ayers, S., Faktor, M.M., Marr, D., J.L. Stevenson. J. Mat. Sci. 7, 31, (1972).Google Scholar
7. Levine, B.F., Bethea, C.G., Thurmond, C.D., Lynch, R.T., Bernstein., J.L. J. Appl. Phys. 50, 2523, (1979).Google Scholar
8. Lipscomb, G.F., Garito, A.F., Narang., R.S. J. Chem. Phys. 75, 1509, (1981).Google Scholar
9. Moyle, B.D., Ellul, R.E., Calvert., P.D. J. Mat. Sci. Letts. 6, 167, (1987).Google Scholar
10. Zyss., J. J. Molecular Electronics 1, 25, (1985).Google Scholar
11. Kurtz, S.K., Perry., T.T. J. Appl. Phys. 39, 3798, (1968).Google Scholar
12. Dougherty, J.P., Kurtz., S.K. J. Appl. Cryst. 9, 145, (1976).Google Scholar