OSA's Digital Library

Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 68, Iss. 10 — Oct. 1, 1978
  • pp: 1325–1332

Surface polariton in the ATR angular spectra of a thin iron film bounded by dielectric layers

G. J. Kovacs  »View Author Affiliations


JOSA, Vol. 68, Issue 10, pp. 1325-1332 (1978)
http://dx.doi.org/10.1364/JOSA.68.001325


View Full Text Article

Acrobat PDF (1104 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

The complex dielectric constant of Fe has a large imaginary part and small real part throughout most of the visible region (εi≫ |εr|). Under this condition a thin film of Fe(≤ 20 nm), bounded by a dielectric, can support a surface polariton. For p-polarized fields the antisymmetric solution to the dispersion relation has a nearly real propagation vector parallel to the surface. Hence this antisymmetric polariton can be excited optically. We use the attenuated total reflection (ATR) configuration with three successive layers, cryolite-Fe-cryolite, evaporated onto the base of a glass prism. The surface polariton is detected as a narrow minimum in the ATR angular spectrum. We choose the frequency at which εr = 0 and then an incident p-polarized plane wave yields zero energy propagation in the Fe film in the direction parallel to the plane on the film. There are also other broader minima in the p-polarized spectrum corresponding to large field oscillations localized in the second dielectric. Minima in the s-polarized spectrum correspond to oscillations localized in the first dielectric. In addition the angular reflectance spectrum of both polarizations contains sharp maxima caused by resonance standing wave patterns which persist through the incident medium as well as the film system.

© 1978 Optical Society of America

Citation
G. J. Kovacs, "Surface polariton in the ATR angular spectra of a thin iron film bounded by dielectric layers," J. Opt. Soc. Am. 68, 1325-1332 (1978)
http://www.opticsinfobase.org/josa/abstract.cfm?URI=josa-68-10-1325


Sort:  Author  |  Year  |  Journal  |  Reset

References

  1. A. Otto, "Excitation of Nonradiative Surface Plasma Waves in Silver by the Method of Frustrated Total Reflection," Z. Phys. 216, 398–410 (1968).
  2. E. Kretschmann, "Die Bestimmung optischer Konstanten von Metallen durch Anregung von Oberflächenplasmaschwingungen," Z. Phys. 241, 313–324 (1971).
  3. F. Abelès and T. Lopez-Rios, "Decoupled optical excitation of surface plasmons at the two surfaces of a thin film," Opt. Commun. 11, 89–92 (1974).
  4. G. J. Kovacs and G. D. Scott, "Optical excitation of surface plasma waves in layered media," Phys. Rev. B 16, 1297–1311 (1977).
  5. G. J. Kovacs, "Optical Excitation of Resonant Electromagnetic Oscillations in Thin Films," Ph.D. Thesis, University of Toronto (1977) (unpublished).
  6. J. D. McMullen, "Recursive solution of the dispersion relation of a surface polariton in a layered structure," J. Opt. Soc. Am. 67, 698–699 (1977).
  7. A. Otto, "Experimental Investigation of Surface Polaritons on Plane Interfaces," in Festokörperprobleme XIV, edited by H. J. Queisser (Pergamon, New York, 1974), p. 1–37.
  8. J. J. Hopfield, "Theory of the contribution of excitons to the complex dielectric constant of crystals," Phys. Rev. 112, 1555–1567 (1958).
  9. E. Burstein, "Introductory Remarks on Polaritons," in Polaritons, edited by E. Burstein (Pergamon, New York, 1974), p. 1–4.
  10. P. K. Tien, "Light waves in thin films and integrated optics," Appl. Opt. 10, 2395–2413 (1971).
  11. P. B. Johnson and R. W. Christy, "Optical constants of transition metals: Ti, V, Cr, Mn, Fe, Co, Ni, and Pd," Phys. Rev. B 9, 5056– 5070 (1974).
  12. J. K. Gimzewski, B. D. Padalia, S. Affrossman, L. M. Watson, and D. J. Fabian, "The reaction of oxygen and water with iron films studied by X-ray photoelectron spectroscopy, Sur. Sci. 62, 386–396 (1977).
  13. O. S. Heavens and S. D. Smith, "Dielectric thin films," J. Opt. Soc. Am. 47, 469–472 (1957).
  14. G. D. Scott, "The Measurement of the Thickness of Evaporated Films by a Multiple Beam Interference Method," in Vacuum Symposium Transactions 1956, (Pergamon, New York, 1957), p. 24–28.
  15. M. Born and E. Wolf, Principles of Optics, 5th ed. (Pergamon, Oxford, 1975), p. 1ff.
  16. P. H. Lissberger and R. G. Nelson, "Optical Properties of Thin Film Au-MgF2 Cermets," Thin Solid Films 21, 159–172 (1974).
  17. R. P. Netterfield, "Refractive indices of zinc sulfide and cryolite in multilayer stacks," Appl. Opt. 15, 1969–1973 (1976).
  18. P. H. Lissberger, "Optical applications of dielectric thin films," Rep. Prog. Phys. 33, 197–268 (1970).
  19. E. A. Stern and R. A. Ferrell, "Surface plasma oscillations of a degenerate electron gas," Phys. Rev. 120, 130–136 (1960).

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited