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Synthesis and Nonlinear Optical Characteristics of Chromophore-Functionalized Polymers Having Chromophore-Centered Hydrogen-Bonding and Crosslinking Groups

Published online by Cambridge University Press:  25 February 2011

Y. Jin
Affiliation:
Materials Science and Engineering Department and the Materials Research Center, Northwestern University, Evanston, IL 60208
S. H. Carr
Affiliation:
Materials Science and Engineering Department and the Materials Research Center, Northwestern University, Evanston, IL 60208
T. J. Marks
Affiliation:
Department of Chemistry and the Materials Research Center, Northwestern University, Evanston, IL 60208
W. Lin
Affiliation:
Department of Physics and the Materials Research Center, Northwestern University, Evanston, IL 60208
G. K. Wong
Affiliation:
Department of Physics and the Materials Research Center, Northwestern University, Evanston, IL 60208
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Abstract

In this study, we report the synthesis and characterization of a new, systematically designed class of second-order NLO polymers in which the appended chromophoric substituent is modified (hydroxylated) to allow direct chromophore involvement in hydrogen-bonding and crosslinking. Thus, the glassy polymer poly(p-hydroxystyrene) has been functionalized to varying levels with the N-(3-hydroxy-4-nitrophenyl)-(S)-prolinoxy (HNPP) high-β chromophore. The time-dependent second harmonic generation characteristics of thin films of this material have been studied at λ = 1.064 μm as a function of chromophore functionalization level, hydrogen-bonding capacity, and thermal crosslinking. These materials are found to possess high d33 values (up to 34 × 10−9 esu) and long characteristic SHG decay times (longer than a year). Analysis of the decay of the second harmonic signal shows that increasing hydrogen-bonding density substantially increases relaxation times; it is further shown that introduction of crosslinks is yet more effective in imparting SHG temporal stability to these polymeric nonlinear optical materials.

Type
Research Article
Copyright
Copyright © Materials Research Society 1992

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References

REFERENCES

1. Dai, D.-R., Hubbard, M.A., Li, D., Park, J., Ratner, M.A, Marks, T.J., Yang, J., Wong, G.K., ACS Symposium Series, 455, 226249 (1991).Google Scholar
2. Messier, J., Kajar, F., Prasad, P., Ulrich, D., Eds. Nonlinear Optical Effects in Organic Polymer (Kluwer Academic Publishers, Dordrecht, 1989).Google Scholar
3. Chemia, D.S., Zyss, J., Eds. Nonlinear Optical Properties of Organic Molecules and Crystals, (Academic Press, New York, NY. 1987).Google Scholar
4. Williams, D.J., Angew. Chem. Intl. Ed. Engl. 23, 690703 (1984).Google Scholar
5. Singer, K.D., Sohn, J.E., Lalama, S.J., Appl. Phys. Lett 4, 968975 (1986).Google Scholar
6. Park, J., Marks, T.J., Yang, J., Wong, G.K, Chemistry of Materials 2, 229231 (1990).Google Scholar
7. Dai, D.-R., Marks, T.J., Yang, J., Lundquist, P.M., Wong, G.K, Macromolecules, 23, 18941896 (1990).Google Scholar
8. Hubbard, M.A., Marks, T.J., Yang, J., Wong, G.K, Chemistry of Materials 1, 167169 (1989).Google Scholar
9. Ye, C., Minami, N., Marks, T.J., Yang, J., Wong, G.K., Macromolecules, 21, 29012904 (1988).Google Scholar
10. Ye, C., Marks, T.J., Yang, J., Wong, G.K., Macromolecules, 20, 23222324 (1987).Google Scholar
11. Zyss, J., Nicoud, J.F., Coquillary, M. J., Chem. Phys. 81 41604167 (1984).Google Scholar
12. Barzoukas, M., Josse, D., Dremaux, P., Zyss, J., Nicoud, J.F., Morely, J., J. Opt. Soc. Am. B 4, 977986 (1987).Google Scholar