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Material Requirements For All-Optical Devices:Nonlinear Properties of Poly-4BCMU

  • G. I. Stegeman (a1), W. Torruellas (a2), K. B. Rochford (a3), R. Zanoni (a4), W. Krug (a5), E. Miao (a5) and M. W. Beranek (a5)...

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The non-resonant third order nonlinearity of conjugated polymers appears to be potentially useful for all-optical devices in waveguide formats.[l,2] This nonlinearity manifests itself as an intensity-dependent refractive index which leads to a nonlinear phase shift over some propagation distance. Device research over the last few years has shown that there are certain minimum requirements for the nonlinear phase shift that need to be achieved over one absorption length of the material.[l,3] There are two principal sources of absorption, the usual linear absorption which is independent of fluence, and two photon absorption for which the absorption scales linearly with intensity. Thus the usefulness of a nonlinear material for all-optical switching devices can be evaluated from a limited number of material parameters, namely n2 (in n = n0 + n2I where I is the local intensity), α0 which is the low power absorption coefficient and β which is the two photon coefficient (in α = α0 + βI). The problem for a given material is to identify spectral regions over which the minimum required phase shift can be achieved.

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1. Stegeman, G.I. and Wright, E.M., J. Optical and Quant. Electron., 22, 95, (1990)
2. see for example Nonlinear Opntical Effects in Organic Polymers, edited by Messier, J. et al., NATO ISI Series, Vol 162 (Kluwer Academic Publishers, 1989); Nonlinear Optical Properties of Organic Molecules and Crystals, edited by D.S. Chemla and J. Zyss (Academic Press, New York, 1987)
3. DeLong, K., Rochford, K.B. and Stegeman, G.I., Appl. Phys. Lett., 55, 1823, (1989)
4. Chance, R.R., Shand, M.L., Hogg, C. and Silbey, R., Phys. Rev. B22, 3540, (1980).
5. Dennis, W.M., Blau, W. and Bradley, D.J., Appl. Phys. Lett., 47, 200 (1985).
6. Rao, D.N., Chopra, P., Ghoshal, S.K., Swiatkiewicz, J. and Prasad, P.N., J. Chem. Phys., 84, 7049 (1986).
7. Chollet, P.A., Kajzar, F. and Messier, J., Synth. Met., 18, 459 (1987).
8. Nunzi, J.M. and Grec, D., J. Appl. Phys., 62, 2198, (1987); J.M. Nunzi and F. Charra, Opt. Commun., 73, 357 (1989).
9. Ho, P.P., Dorsinville, R., Yang, N.L., Odian, G., Eichmann, G., Jimbo, T., Wang, Q.Z., Tang, G.C., chen, N.D., Zou, W.K., Li, Y. and Alfano, R.R., Proceedings of Symposium on Molecular and Polymeric Materials, SPIE 682, 36 (1986); L. Yang, R. Dorsinville, Q.Z. Wang, W.K. Zou, P.P. Ho, N.L. Yang, R.R. Alfano,, R. Zamboni, R. Danieli, R. Ruani and C. Taliani, J. Opt. Soc. Am. B 6, 753 (1989).
10. Sinclair, M., McBranch, D., Moses, D. and Heeger, A.J., Appl. Phys. Lett., 53, 2374 (1989).
11. Townsend, P.D., Jackel, J.L., Baker, G.L., Shelbourne, J.A. III, Etemad, S., Appl. Phys. Lett., 1989, 55, 1829, (1989)
12. Torruellas, W.E., Rochford, K.B., Zanoni, R., Arakaki, S. and Stegeman, G.I., Opt. Comm., 82, 94, (1991).
13. Torruellas, W.E., “The Optical Susceptibility Dispersion of Some Transparent Thin Films”, PhD thesis, Un. Arizona 1990
14. Rochford, K.B., Zanoni, R., Stegeman, G.I., Krug, W., Miao, E. and Beranek, M.W., Appl. Phys. Lett., 58, 13, (1991).
15. Schulten, K., Ohmine, I. and Karplus, M., J. Chem. Phys., 64, 4422 (1976).
16. Orr, B.J. and Ward, J.F., Mol. Phys., 20, 513 (1971).
17. Meredith, G.R., Buchalter, B and Hanzlik, C., J. Chem. Phys., 78, 1543 (1983).
18. Kajzar, F., Messier, J. and Rosilio, R., J. Appl. Phys., 60, 3040 (1986).
19. Townsend, P.D., Fann, W., Etemad, S., Baker, G.L., Jackel, J. and Soos, Z.G., Chem. Phys. Lett., to be published
20. Finlayson, N., Banyai, W.C., Seaton, C.T., Stegeman, G.I., O'Neill, M., Cullen, T.J. and Ironside, C.N., Opt. Lett., 14, 532, (1989).
21. LaGasse, M.J., Wong, D.L., Haus, H.A. and Fujimoto, J.G., Opt. Lett., 14, 311 (1989).
22. Rochford, K.B., “The Desert Chronicles”, PhD thesis, Un. Arizona (1990).
23. Agrawal, G.P., Cojan, C. and Flytzanis, C., Phys. Rev., B17, 776, (1978)
24. Hudson, B.S., Kohler, B.E. and Schultem, K., in Excited States, Vol 6, edited by Lim, E.C., (Academic, New York, 1982), pp l96
25. Soos, A.G. and Hayden, G.W., in Electroresponsive Molecular and Polymeric Systems, Vol 1, edited by Skotheim, T.A., (Marcel Dekker, New York, 1988), pp197266
26. Soos, Z.G. and Ramasesha, S., J. Chem. Phys., 90, 1067 (1989).
27. Mazumdar, S., Guo, D. and Dixit, S.N., Proceedings of SPIE 1991 O/E Laser Conference, in press; Mol. Cryst. Liq. Cryst., 194, 33 (1991).

Material Requirements For All-Optical Devices:Nonlinear Properties of Poly-4BCMU

  • G. I. Stegeman (a1), W. Torruellas (a2), K. B. Rochford (a3), R. Zanoni (a4), W. Krug (a5), E. Miao (a5) and M. W. Beranek (a5)...

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