Abstract

We observed that a monomolecular layer of an organic dye strongly influences the surface plasma oscillation (SPO) on thin silver films in spectral regions where the dye absorbs. Experimentally, squarylium dye was deposited by the Langmuir-Blodgett monolayer technique and the silver-dye films were investigated by their SPO’s. Within the absorption band, the SPO’s exhibited an anomalous dispersion and a pronounced variation in the damping. To explain this behavior, theoretical model calculations and approximate expressions are presented which show the relationship between the dielectric function of the coating and the observed effect. The influence of anisotropy is briefly outlined.

© 1978 Optical Society of America

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  1. H. Raether, "Surface Plasma Oscillations and Their Applications," Phys. Thin Films 9, 145 (1977).
  2. D. Hornauer, H. Kapitza, and H. Raether, J. Phys. D Appl. Phys. 7, L100 (1974).
  3. A. J. Braundmeier and E. T. Arakawa, J. Phys. Chem. Solids 35, 517 (1974).
  4. K. Holst and H. Raether, Opt. Commun. 2, 312 (1970).
  5. J. J. Cowan and E. T. Arakawa, Z. Phys. 235, 97 (1970).
  6. F. Abelès, Surf. Sci. 56, 237 (1976).
  7. J. G. Gordon II and J. D. Swalen, Opt. Commun. 22, 374 (1977).
  8. I. Pockrand, "Surface Plasma Oscillations at Silver Surfaces with Thin Transparent and Absorbing Coatings," Surf. Sci. 72, 577 (1978).
  9. I. Pockrand, J. D. Swalen, J. A. Gordon II, and M. R. Philpott, "Surface Plasmon Spectroscopy of Organic Monolayer Assemblies," Surf. Sci. (to be published).
  10. P. B. Johnson and R. W. Christy, Phys. Rev. B 12, 4370 (1972).
  11. T. Lopez-Rios, Opt. Commun. 17, 342 (1976).
  12. H. Seki and U. Itoh, (unpublished results).
  13. I. Pockrand, J. D. Swalen, A. Brillante, J. A. Gordon II, M. R. Philpott, and R. Santo, (unpublished).

1978 (1)

I. Pockrand, "Surface Plasma Oscillations at Silver Surfaces with Thin Transparent and Absorbing Coatings," Surf. Sci. 72, 577 (1978).

1977 (1)

H. Raether, "Surface Plasma Oscillations and Their Applications," Phys. Thin Films 9, 145 (1977).

Abelès, F.

F. Abelès, Surf. Sci. 56, 237 (1976).

Arakawa, E. T.

A. J. Braundmeier and E. T. Arakawa, J. Phys. Chem. Solids 35, 517 (1974).

J. J. Cowan and E. T. Arakawa, Z. Phys. 235, 97 (1970).

Braundmeier, A. J.

A. J. Braundmeier and E. T. Arakawa, J. Phys. Chem. Solids 35, 517 (1974).

Brillante, A.

I. Pockrand, J. D. Swalen, A. Brillante, J. A. Gordon II, M. R. Philpott, and R. Santo, (unpublished).

Christy, R. W.

P. B. Johnson and R. W. Christy, Phys. Rev. B 12, 4370 (1972).

Cowan, J. J.

J. J. Cowan and E. T. Arakawa, Z. Phys. 235, 97 (1970).

Gordon II, J. A.

I. Pockrand, J. D. Swalen, J. A. Gordon II, and M. R. Philpott, "Surface Plasmon Spectroscopy of Organic Monolayer Assemblies," Surf. Sci. (to be published).

I. Pockrand, J. D. Swalen, A. Brillante, J. A. Gordon II, M. R. Philpott, and R. Santo, (unpublished).

Gordon II, J. G.

J. G. Gordon II and J. D. Swalen, Opt. Commun. 22, 374 (1977).

Holst, K.

K. Holst and H. Raether, Opt. Commun. 2, 312 (1970).

Hornauer, D.

D. Hornauer, H. Kapitza, and H. Raether, J. Phys. D Appl. Phys. 7, L100 (1974).

Itoh, U.

H. Seki and U. Itoh, (unpublished results).

Johnson, P. B.

P. B. Johnson and R. W. Christy, Phys. Rev. B 12, 4370 (1972).

Kapitza, H.

D. Hornauer, H. Kapitza, and H. Raether, J. Phys. D Appl. Phys. 7, L100 (1974).

Lopez-Rios, T.

T. Lopez-Rios, Opt. Commun. 17, 342 (1976).

Philpott, M. R.

I. Pockrand, J. D. Swalen, A. Brillante, J. A. Gordon II, M. R. Philpott, and R. Santo, (unpublished).

I. Pockrand, J. D. Swalen, J. A. Gordon II, and M. R. Philpott, "Surface Plasmon Spectroscopy of Organic Monolayer Assemblies," Surf. Sci. (to be published).

Pockrand, I.

I. Pockrand, "Surface Plasma Oscillations at Silver Surfaces with Thin Transparent and Absorbing Coatings," Surf. Sci. 72, 577 (1978).

I. Pockrand, J. D. Swalen, J. A. Gordon II, and M. R. Philpott, "Surface Plasmon Spectroscopy of Organic Monolayer Assemblies," Surf. Sci. (to be published).

I. Pockrand, J. D. Swalen, A. Brillante, J. A. Gordon II, M. R. Philpott, and R. Santo, (unpublished).

Raether, H.

H. Raether, "Surface Plasma Oscillations and Their Applications," Phys. Thin Films 9, 145 (1977).

D. Hornauer, H. Kapitza, and H. Raether, J. Phys. D Appl. Phys. 7, L100 (1974).

K. Holst and H. Raether, Opt. Commun. 2, 312 (1970).

Santo, R.

I. Pockrand, J. D. Swalen, A. Brillante, J. A. Gordon II, M. R. Philpott, and R. Santo, (unpublished).

Seki, H.

H. Seki and U. Itoh, (unpublished results).

Swalen, J. D.

I. Pockrand, J. D. Swalen, A. Brillante, J. A. Gordon II, M. R. Philpott, and R. Santo, (unpublished).

I. Pockrand, J. D. Swalen, J. A. Gordon II, and M. R. Philpott, "Surface Plasmon Spectroscopy of Organic Monolayer Assemblies," Surf. Sci. (to be published).

J. G. Gordon II and J. D. Swalen, Opt. Commun. 22, 374 (1977).

Phys. Thin Films (1)

H. Raether, "Surface Plasma Oscillations and Their Applications," Phys. Thin Films 9, 145 (1977).

Surf. Sci. (1)

I. Pockrand, "Surface Plasma Oscillations at Silver Surfaces with Thin Transparent and Absorbing Coatings," Surf. Sci. 72, 577 (1978).

Other (11)

I. Pockrand, J. D. Swalen, J. A. Gordon II, and M. R. Philpott, "Surface Plasmon Spectroscopy of Organic Monolayer Assemblies," Surf. Sci. (to be published).

P. B. Johnson and R. W. Christy, Phys. Rev. B 12, 4370 (1972).

T. Lopez-Rios, Opt. Commun. 17, 342 (1976).

H. Seki and U. Itoh, (unpublished results).

I. Pockrand, J. D. Swalen, A. Brillante, J. A. Gordon II, M. R. Philpott, and R. Santo, (unpublished).

D. Hornauer, H. Kapitza, and H. Raether, J. Phys. D Appl. Phys. 7, L100 (1974).

A. J. Braundmeier and E. T. Arakawa, J. Phys. Chem. Solids 35, 517 (1974).

K. Holst and H. Raether, Opt. Commun. 2, 312 (1970).

J. J. Cowan and E. T. Arakawa, Z. Phys. 235, 97 (1970).

F. Abelès, Surf. Sci. 56, 237 (1976).

J. G. Gordon II and J. D. Swalen, Opt. Commun. 22, 374 (1977).

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