Abstract

A new method for optically exciting and visualizing surface plasmons in thin metal films is described. The technique relies on the use of a high-numerical-aperture objective lens to locally launch a broad wavelength spectrum of surface waves and to detect the leaky radiative modes associated with them. We used this approach to obtain a direct visualization of the plasmon intensity distributions, e.g., rainbow jets, and to quantify their propagation lengths throughout the visible spectrum.

© 2005 Optical Society of America

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  1. H. Raether, Surface Plasmons (Springer-Verlag, Berlin, 1988).
  2. P. Schuck, Annu. Rev. Biophys. Biomol. Struct. 26, 541 (1997).
    [CrossRef]
  3. W. L. Barnes, A. Dereux, and T. W. Ebbesen, Nature 424, 824 (2003).
    [CrossRef] [PubMed]
  4. F. Keilmann, J. Microsc. 194, 567 (1999).
    [CrossRef]
  5. I. F. Baida, D. Van Labeke, A. Bouhelier, Th. Huser, and D. W. Pohl, J. Opt. Soc. Am. A 18, 1552 (2001).
    [CrossRef]
  6. B. Lamprecht, J. R. Krenn, G. Schider, H. Ditlbacher, M. Salermo, N. Felidj, A. Leitner, and F. R. Aussenegg, Appl. Phys. Lett. 79, 51 (2001).
    [CrossRef]
  7. B. Hecht, H. Bielefeldt, L. Novotny, Y. Inouye, and D. W. Pohl, Phys. Rev. Lett. 77, 1889 (1996).
    [CrossRef] [PubMed]
  8. A. Bouhelier, Th. Huser, H. Tamaru, H.-J. Güntherodt, D. W. Pohl, I. F. Baida, and D. Van Labeke, Phys. Rev. B 63, 155404 (2001).
    [CrossRef]
  9. V. Coello, Th. Søndergaard, and S. I. Bozhevolnyi, Opt. Commun. 240, 345 (2004).
    [CrossRef]
  10. A. V. Shchegrov, I. V. Novikov, and A. A. Maradudin, Phys. Rev. Lett. 78, 4269 (1997).
    [CrossRef]
  11. I. I. Smolyaninov, D. L. Mazzoni, J. Mait, and Ch. C. Davis, Phys. Rev. B 56, 1601 (1997).
    [CrossRef]
  12. J. A. Sánchez-Gil, Appl. Phys. Lett. 73, 3509 (1998).
    [CrossRef]
  13. J. C. Weeber, A. Dereux, Ch. Girard, J. R. Krenn, and J.-P. Goudonnet, Phys. Rev. B 60, 9061 (1999).
    [CrossRef]
  14. S. I. Bozhevolnyi, V. S. Volkov, and K. Leosson, Phys. Rev. Lett. 89, 186801 (2002).
    [CrossRef]
  15. M. I. Stockman, Phys. Rev. Lett. 93, 137404 (2004).
    [CrossRef]
  16. S. I. Bozhevolnyi and F. A. Pudonin, Phys. Rev. Lett. 78, 2823 (1997).
    [CrossRef]
  17. H. Ditlbacher, J. R. Krenn, G. Schider, A. Leitner, and F. R. Aussenegg, Appl. Phys. Lett. 81, 1762 (2002).
    [CrossRef]
  18. J. Seidel, S. Grafström, L. Eng, and L. Bischoff, Appl. Phys. Lett. 82, 1368 (2003).
    [CrossRef]
  19. P. Dawson, F. De Fornel, and J.-P. Goudonnet, Phys. Rev. Lett. 72, 2927 (1994).
    [CrossRef] [PubMed]
  20. J. J. Burke, G. I. Stegeman, and T. Tamir, Phys. Rev. B 33, 5186 (1986).
    [CrossRef]
  21. E. Kretschmann and H. Raether, Z. Naturforsch. A 23a, 2135 (1968).
  22. H. Tamaru, H. Ishikawa, and K. Miyano, presented at the Sixth International Conference on Near Field Optics, Twente, The Netherlands, August 27–31, 2000.
  23. D. L. Mills, Phys. Rev. B 12, 4036 (1975).
    [CrossRef]
  24. E. Kretschmann, Z. Phys. 241, 313 (1970).
    [CrossRef]

2004

V. Coello, Th. Søndergaard, and S. I. Bozhevolnyi, Opt. Commun. 240, 345 (2004).
[CrossRef]

M. I. Stockman, Phys. Rev. Lett. 93, 137404 (2004).
[CrossRef]

2003

J. Seidel, S. Grafström, L. Eng, and L. Bischoff, Appl. Phys. Lett. 82, 1368 (2003).
[CrossRef]

W. L. Barnes, A. Dereux, and T. W. Ebbesen, Nature 424, 824 (2003).
[CrossRef] [PubMed]

2002

S. I. Bozhevolnyi, V. S. Volkov, and K. Leosson, Phys. Rev. Lett. 89, 186801 (2002).
[CrossRef]

H. Ditlbacher, J. R. Krenn, G. Schider, A. Leitner, and F. R. Aussenegg, Appl. Phys. Lett. 81, 1762 (2002).
[CrossRef]

2001

I. F. Baida, D. Van Labeke, A. Bouhelier, Th. Huser, and D. W. Pohl, J. Opt. Soc. Am. A 18, 1552 (2001).
[CrossRef]

B. Lamprecht, J. R. Krenn, G. Schider, H. Ditlbacher, M. Salermo, N. Felidj, A. Leitner, and F. R. Aussenegg, Appl. Phys. Lett. 79, 51 (2001).
[CrossRef]

A. Bouhelier, Th. Huser, H. Tamaru, H.-J. Güntherodt, D. W. Pohl, I. F. Baida, and D. Van Labeke, Phys. Rev. B 63, 155404 (2001).
[CrossRef]

1999

F. Keilmann, J. Microsc. 194, 567 (1999).
[CrossRef]

J. C. Weeber, A. Dereux, Ch. Girard, J. R. Krenn, and J.-P. Goudonnet, Phys. Rev. B 60, 9061 (1999).
[CrossRef]

1998

J. A. Sánchez-Gil, Appl. Phys. Lett. 73, 3509 (1998).
[CrossRef]

1997

S. I. Bozhevolnyi and F. A. Pudonin, Phys. Rev. Lett. 78, 2823 (1997).
[CrossRef]

P. Schuck, Annu. Rev. Biophys. Biomol. Struct. 26, 541 (1997).
[CrossRef]

A. V. Shchegrov, I. V. Novikov, and A. A. Maradudin, Phys. Rev. Lett. 78, 4269 (1997).
[CrossRef]

I. I. Smolyaninov, D. L. Mazzoni, J. Mait, and Ch. C. Davis, Phys. Rev. B 56, 1601 (1997).
[CrossRef]

1996

B. Hecht, H. Bielefeldt, L. Novotny, Y. Inouye, and D. W. Pohl, Phys. Rev. Lett. 77, 1889 (1996).
[CrossRef] [PubMed]

1994

P. Dawson, F. De Fornel, and J.-P. Goudonnet, Phys. Rev. Lett. 72, 2927 (1994).
[CrossRef] [PubMed]

1986

J. J. Burke, G. I. Stegeman, and T. Tamir, Phys. Rev. B 33, 5186 (1986).
[CrossRef]

1975

D. L. Mills, Phys. Rev. B 12, 4036 (1975).
[CrossRef]

1970

E. Kretschmann, Z. Phys. 241, 313 (1970).
[CrossRef]

1968

E. Kretschmann and H. Raether, Z. Naturforsch. A 23a, 2135 (1968).

Aussenegg, F. R.

H. Ditlbacher, J. R. Krenn, G. Schider, A. Leitner, and F. R. Aussenegg, Appl. Phys. Lett. 81, 1762 (2002).
[CrossRef]

B. Lamprecht, J. R. Krenn, G. Schider, H. Ditlbacher, M. Salermo, N. Felidj, A. Leitner, and F. R. Aussenegg, Appl. Phys. Lett. 79, 51 (2001).
[CrossRef]

Baida, I. F.

A. Bouhelier, Th. Huser, H. Tamaru, H.-J. Güntherodt, D. W. Pohl, I. F. Baida, and D. Van Labeke, Phys. Rev. B 63, 155404 (2001).
[CrossRef]

I. F. Baida, D. Van Labeke, A. Bouhelier, Th. Huser, and D. W. Pohl, J. Opt. Soc. Am. A 18, 1552 (2001).
[CrossRef]

Barnes, W. L.

W. L. Barnes, A. Dereux, and T. W. Ebbesen, Nature 424, 824 (2003).
[CrossRef] [PubMed]

Bielefeldt, H.

B. Hecht, H. Bielefeldt, L. Novotny, Y. Inouye, and D. W. Pohl, Phys. Rev. Lett. 77, 1889 (1996).
[CrossRef] [PubMed]

Bischoff, L.

J. Seidel, S. Grafström, L. Eng, and L. Bischoff, Appl. Phys. Lett. 82, 1368 (2003).
[CrossRef]

Bouhelier, A.

A. Bouhelier, Th. Huser, H. Tamaru, H.-J. Güntherodt, D. W. Pohl, I. F. Baida, and D. Van Labeke, Phys. Rev. B 63, 155404 (2001).
[CrossRef]

I. F. Baida, D. Van Labeke, A. Bouhelier, Th. Huser, and D. W. Pohl, J. Opt. Soc. Am. A 18, 1552 (2001).
[CrossRef]

Bozhevolnyi, S. I.

V. Coello, Th. Søndergaard, and S. I. Bozhevolnyi, Opt. Commun. 240, 345 (2004).
[CrossRef]

S. I. Bozhevolnyi, V. S. Volkov, and K. Leosson, Phys. Rev. Lett. 89, 186801 (2002).
[CrossRef]

S. I. Bozhevolnyi and F. A. Pudonin, Phys. Rev. Lett. 78, 2823 (1997).
[CrossRef]

Burke, J. J.

J. J. Burke, G. I. Stegeman, and T. Tamir, Phys. Rev. B 33, 5186 (1986).
[CrossRef]

Coello, V.

V. Coello, Th. Søndergaard, and S. I. Bozhevolnyi, Opt. Commun. 240, 345 (2004).
[CrossRef]

Davis, Ch. C.

I. I. Smolyaninov, D. L. Mazzoni, J. Mait, and Ch. C. Davis, Phys. Rev. B 56, 1601 (1997).
[CrossRef]

Dawson, P.

P. Dawson, F. De Fornel, and J.-P. Goudonnet, Phys. Rev. Lett. 72, 2927 (1994).
[CrossRef] [PubMed]

De Fornel, F.

P. Dawson, F. De Fornel, and J.-P. Goudonnet, Phys. Rev. Lett. 72, 2927 (1994).
[CrossRef] [PubMed]

Dereux, A.

W. L. Barnes, A. Dereux, and T. W. Ebbesen, Nature 424, 824 (2003).
[CrossRef] [PubMed]

J. C. Weeber, A. Dereux, Ch. Girard, J. R. Krenn, and J.-P. Goudonnet, Phys. Rev. B 60, 9061 (1999).
[CrossRef]

Ditlbacher, H.

H. Ditlbacher, J. R. Krenn, G. Schider, A. Leitner, and F. R. Aussenegg, Appl. Phys. Lett. 81, 1762 (2002).
[CrossRef]

B. Lamprecht, J. R. Krenn, G. Schider, H. Ditlbacher, M. Salermo, N. Felidj, A. Leitner, and F. R. Aussenegg, Appl. Phys. Lett. 79, 51 (2001).
[CrossRef]

Ebbesen, T. W.

W. L. Barnes, A. Dereux, and T. W. Ebbesen, Nature 424, 824 (2003).
[CrossRef] [PubMed]

Eng, L.

J. Seidel, S. Grafström, L. Eng, and L. Bischoff, Appl. Phys. Lett. 82, 1368 (2003).
[CrossRef]

Felidj, N.

B. Lamprecht, J. R. Krenn, G. Schider, H. Ditlbacher, M. Salermo, N. Felidj, A. Leitner, and F. R. Aussenegg, Appl. Phys. Lett. 79, 51 (2001).
[CrossRef]

Girard, Ch.

J. C. Weeber, A. Dereux, Ch. Girard, J. R. Krenn, and J.-P. Goudonnet, Phys. Rev. B 60, 9061 (1999).
[CrossRef]

Goudonnet, J.-P.

J. C. Weeber, A. Dereux, Ch. Girard, J. R. Krenn, and J.-P. Goudonnet, Phys. Rev. B 60, 9061 (1999).
[CrossRef]

P. Dawson, F. De Fornel, and J.-P. Goudonnet, Phys. Rev. Lett. 72, 2927 (1994).
[CrossRef] [PubMed]

Grafström, S.

J. Seidel, S. Grafström, L. Eng, and L. Bischoff, Appl. Phys. Lett. 82, 1368 (2003).
[CrossRef]

Güntherodt, H.-J.

A. Bouhelier, Th. Huser, H. Tamaru, H.-J. Güntherodt, D. W. Pohl, I. F. Baida, and D. Van Labeke, Phys. Rev. B 63, 155404 (2001).
[CrossRef]

Hecht, B.

B. Hecht, H. Bielefeldt, L. Novotny, Y. Inouye, and D. W. Pohl, Phys. Rev. Lett. 77, 1889 (1996).
[CrossRef] [PubMed]

Huser, Th.

A. Bouhelier, Th. Huser, H. Tamaru, H.-J. Güntherodt, D. W. Pohl, I. F. Baida, and D. Van Labeke, Phys. Rev. B 63, 155404 (2001).
[CrossRef]

I. F. Baida, D. Van Labeke, A. Bouhelier, Th. Huser, and D. W. Pohl, J. Opt. Soc. Am. A 18, 1552 (2001).
[CrossRef]

Inouye, Y.

B. Hecht, H. Bielefeldt, L. Novotny, Y. Inouye, and D. W. Pohl, Phys. Rev. Lett. 77, 1889 (1996).
[CrossRef] [PubMed]

Ishikawa, H.

H. Tamaru, H. Ishikawa, and K. Miyano, presented at the Sixth International Conference on Near Field Optics, Twente, The Netherlands, August 27–31, 2000.

Keilmann, F.

F. Keilmann, J. Microsc. 194, 567 (1999).
[CrossRef]

Krenn, J. R.

H. Ditlbacher, J. R. Krenn, G. Schider, A. Leitner, and F. R. Aussenegg, Appl. Phys. Lett. 81, 1762 (2002).
[CrossRef]

B. Lamprecht, J. R. Krenn, G. Schider, H. Ditlbacher, M. Salermo, N. Felidj, A. Leitner, and F. R. Aussenegg, Appl. Phys. Lett. 79, 51 (2001).
[CrossRef]

J. C. Weeber, A. Dereux, Ch. Girard, J. R. Krenn, and J.-P. Goudonnet, Phys. Rev. B 60, 9061 (1999).
[CrossRef]

Kretschmann, E.

E. Kretschmann, Z. Phys. 241, 313 (1970).
[CrossRef]

E. Kretschmann and H. Raether, Z. Naturforsch. A 23a, 2135 (1968).

Lamprecht, B.

B. Lamprecht, J. R. Krenn, G. Schider, H. Ditlbacher, M. Salermo, N. Felidj, A. Leitner, and F. R. Aussenegg, Appl. Phys. Lett. 79, 51 (2001).
[CrossRef]

Leitner, A.

H. Ditlbacher, J. R. Krenn, G. Schider, A. Leitner, and F. R. Aussenegg, Appl. Phys. Lett. 81, 1762 (2002).
[CrossRef]

B. Lamprecht, J. R. Krenn, G. Schider, H. Ditlbacher, M. Salermo, N. Felidj, A. Leitner, and F. R. Aussenegg, Appl. Phys. Lett. 79, 51 (2001).
[CrossRef]

Leosson, K.

S. I. Bozhevolnyi, V. S. Volkov, and K. Leosson, Phys. Rev. Lett. 89, 186801 (2002).
[CrossRef]

Mait, J.

I. I. Smolyaninov, D. L. Mazzoni, J. Mait, and Ch. C. Davis, Phys. Rev. B 56, 1601 (1997).
[CrossRef]

Maradudin, A. A.

A. V. Shchegrov, I. V. Novikov, and A. A. Maradudin, Phys. Rev. Lett. 78, 4269 (1997).
[CrossRef]

Mazzoni, D. L.

I. I. Smolyaninov, D. L. Mazzoni, J. Mait, and Ch. C. Davis, Phys. Rev. B 56, 1601 (1997).
[CrossRef]

Mills, D. L.

D. L. Mills, Phys. Rev. B 12, 4036 (1975).
[CrossRef]

Miyano, K.

H. Tamaru, H. Ishikawa, and K. Miyano, presented at the Sixth International Conference on Near Field Optics, Twente, The Netherlands, August 27–31, 2000.

Novikov, I. V.

A. V. Shchegrov, I. V. Novikov, and A. A. Maradudin, Phys. Rev. Lett. 78, 4269 (1997).
[CrossRef]

Novotny, L.

B. Hecht, H. Bielefeldt, L. Novotny, Y. Inouye, and D. W. Pohl, Phys. Rev. Lett. 77, 1889 (1996).
[CrossRef] [PubMed]

Pohl, D. W.

A. Bouhelier, Th. Huser, H. Tamaru, H.-J. Güntherodt, D. W. Pohl, I. F. Baida, and D. Van Labeke, Phys. Rev. B 63, 155404 (2001).
[CrossRef]

I. F. Baida, D. Van Labeke, A. Bouhelier, Th. Huser, and D. W. Pohl, J. Opt. Soc. Am. A 18, 1552 (2001).
[CrossRef]

B. Hecht, H. Bielefeldt, L. Novotny, Y. Inouye, and D. W. Pohl, Phys. Rev. Lett. 77, 1889 (1996).
[CrossRef] [PubMed]

Pudonin, F. A.

S. I. Bozhevolnyi and F. A. Pudonin, Phys. Rev. Lett. 78, 2823 (1997).
[CrossRef]

Raether, H.

E. Kretschmann and H. Raether, Z. Naturforsch. A 23a, 2135 (1968).

H. Raether, Surface Plasmons (Springer-Verlag, Berlin, 1988).

Salermo, M.

B. Lamprecht, J. R. Krenn, G. Schider, H. Ditlbacher, M. Salermo, N. Felidj, A. Leitner, and F. R. Aussenegg, Appl. Phys. Lett. 79, 51 (2001).
[CrossRef]

Sánchez-Gil, J. A.

J. A. Sánchez-Gil, Appl. Phys. Lett. 73, 3509 (1998).
[CrossRef]

Schider, G.

H. Ditlbacher, J. R. Krenn, G. Schider, A. Leitner, and F. R. Aussenegg, Appl. Phys. Lett. 81, 1762 (2002).
[CrossRef]

B. Lamprecht, J. R. Krenn, G. Schider, H. Ditlbacher, M. Salermo, N. Felidj, A. Leitner, and F. R. Aussenegg, Appl. Phys. Lett. 79, 51 (2001).
[CrossRef]

Schuck, P.

P. Schuck, Annu. Rev. Biophys. Biomol. Struct. 26, 541 (1997).
[CrossRef]

Seidel, J.

J. Seidel, S. Grafström, L. Eng, and L. Bischoff, Appl. Phys. Lett. 82, 1368 (2003).
[CrossRef]

Shchegrov, A. V.

A. V. Shchegrov, I. V. Novikov, and A. A. Maradudin, Phys. Rev. Lett. 78, 4269 (1997).
[CrossRef]

Smolyaninov, I. I.

I. I. Smolyaninov, D. L. Mazzoni, J. Mait, and Ch. C. Davis, Phys. Rev. B 56, 1601 (1997).
[CrossRef]

Søndergaard, Th.

V. Coello, Th. Søndergaard, and S. I. Bozhevolnyi, Opt. Commun. 240, 345 (2004).
[CrossRef]

Stegeman, G. I.

J. J. Burke, G. I. Stegeman, and T. Tamir, Phys. Rev. B 33, 5186 (1986).
[CrossRef]

Stockman, M. I.

M. I. Stockman, Phys. Rev. Lett. 93, 137404 (2004).
[CrossRef]

Tamaru, H.

A. Bouhelier, Th. Huser, H. Tamaru, H.-J. Güntherodt, D. W. Pohl, I. F. Baida, and D. Van Labeke, Phys. Rev. B 63, 155404 (2001).
[CrossRef]

H. Tamaru, H. Ishikawa, and K. Miyano, presented at the Sixth International Conference on Near Field Optics, Twente, The Netherlands, August 27–31, 2000.

Tamir, T.

J. J. Burke, G. I. Stegeman, and T. Tamir, Phys. Rev. B 33, 5186 (1986).
[CrossRef]

Van Labeke, D.

A. Bouhelier, Th. Huser, H. Tamaru, H.-J. Güntherodt, D. W. Pohl, I. F. Baida, and D. Van Labeke, Phys. Rev. B 63, 155404 (2001).
[CrossRef]

I. F. Baida, D. Van Labeke, A. Bouhelier, Th. Huser, and D. W. Pohl, J. Opt. Soc. Am. A 18, 1552 (2001).
[CrossRef]

Volkov, V. S.

S. I. Bozhevolnyi, V. S. Volkov, and K. Leosson, Phys. Rev. Lett. 89, 186801 (2002).
[CrossRef]

Weeber, J. C.

J. C. Weeber, A. Dereux, Ch. Girard, J. R. Krenn, and J.-P. Goudonnet, Phys. Rev. B 60, 9061 (1999).
[CrossRef]

Annu. Rev. Biophys. Biomol. Struct.

P. Schuck, Annu. Rev. Biophys. Biomol. Struct. 26, 541 (1997).
[CrossRef]

Appl. Phys. Lett.

B. Lamprecht, J. R. Krenn, G. Schider, H. Ditlbacher, M. Salermo, N. Felidj, A. Leitner, and F. R. Aussenegg, Appl. Phys. Lett. 79, 51 (2001).
[CrossRef]

J. A. Sánchez-Gil, Appl. Phys. Lett. 73, 3509 (1998).
[CrossRef]

H. Ditlbacher, J. R. Krenn, G. Schider, A. Leitner, and F. R. Aussenegg, Appl. Phys. Lett. 81, 1762 (2002).
[CrossRef]

J. Seidel, S. Grafström, L. Eng, and L. Bischoff, Appl. Phys. Lett. 82, 1368 (2003).
[CrossRef]

J. Microsc.

F. Keilmann, J. Microsc. 194, 567 (1999).
[CrossRef]

J. Opt. Soc. Am. A

Nature

W. L. Barnes, A. Dereux, and T. W. Ebbesen, Nature 424, 824 (2003).
[CrossRef] [PubMed]

Opt. Commun.

V. Coello, Th. Søndergaard, and S. I. Bozhevolnyi, Opt. Commun. 240, 345 (2004).
[CrossRef]

Phys. Rev. B

J. C. Weeber, A. Dereux, Ch. Girard, J. R. Krenn, and J.-P. Goudonnet, Phys. Rev. B 60, 9061 (1999).
[CrossRef]

A. Bouhelier, Th. Huser, H. Tamaru, H.-J. Güntherodt, D. W. Pohl, I. F. Baida, and D. Van Labeke, Phys. Rev. B 63, 155404 (2001).
[CrossRef]

J. J. Burke, G. I. Stegeman, and T. Tamir, Phys. Rev. B 33, 5186 (1986).
[CrossRef]

D. L. Mills, Phys. Rev. B 12, 4036 (1975).
[CrossRef]

I. I. Smolyaninov, D. L. Mazzoni, J. Mait, and Ch. C. Davis, Phys. Rev. B 56, 1601 (1997).
[CrossRef]

Phys. Rev. Lett.

B. Hecht, H. Bielefeldt, L. Novotny, Y. Inouye, and D. W. Pohl, Phys. Rev. Lett. 77, 1889 (1996).
[CrossRef] [PubMed]

S. I. Bozhevolnyi, V. S. Volkov, and K. Leosson, Phys. Rev. Lett. 89, 186801 (2002).
[CrossRef]

M. I. Stockman, Phys. Rev. Lett. 93, 137404 (2004).
[CrossRef]

S. I. Bozhevolnyi and F. A. Pudonin, Phys. Rev. Lett. 78, 2823 (1997).
[CrossRef]

A. V. Shchegrov, I. V. Novikov, and A. A. Maradudin, Phys. Rev. Lett. 78, 4269 (1997).
[CrossRef]

P. Dawson, F. De Fornel, and J.-P. Goudonnet, Phys. Rev. Lett. 72, 2927 (1994).
[CrossRef] [PubMed]

Z. Naturforsch. A

E. Kretschmann and H. Raether, Z. Naturforsch. A 23a, 2135 (1968).

Z. Phys.

E. Kretschmann, Z. Phys. 241, 313 (1970).
[CrossRef]

Other

H. Tamaru, H. Ishikawa, and K. Miyano, presented at the Sixth International Conference on Near Field Optics, Twente, The Netherlands, August 27–31, 2000.

H. Raether, Surface Plasmons (Springer-Verlag, Berlin, 1988).

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Figures (3)

Fig. 1
Fig. 1

Schematic of the excitation of a white-light continuum of SPs and their observation through detection of the LR with an index-matched oil-immersion lens.

Fig. 2
Fig. 2

SP rainbow jet emitted from a 50-nm-thick silver film. (a) LR intensity distribution for a p-polarized white-light continuum excitation beam. The SPs form a rainbow jet as it propagates away from the focal spot. (b) Control experiment with an excitation beam that is s polarized.

Fig. 3
Fig. 3

(a) SP propagation decay for four wavelengths: 600 nm (diamonds), 550 nm (triangles), 500 nm (circles), and 475 nm (squares). The solid curves represent single exponential decays fitted to the data. (b) Experimental SP decay length (data points). The dotted and dashed curves represent, respectively, the individual contribution of Γ i and Γ rad to the SP attenuation. The solid curve is the sum of these two contributions. Note that the magnitude of Γ i was divided by 2 for clarity.

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