Abstract

We report the generation and focusing of surface plasmon polariton (SPP) waves from normally incident light on a planar circular grating milled into a silver film. The focusing mechanism is explained by using a simple coherent interference model of SPP generation on the circular grating by the incident field. Experimental results concur well with theoretical predictions and highlight the requirement for the phase matching of SPP sources in the grating to achieve the maximum enhancement of the SPP wave at the focal point. NSOM measurements show that the plasmonic lens achieves more than a 10-fold intensity enhancement over the intensity of a single ring of the in-plane field components at the focus when the grating design is tuned to the SPP wavelength. We discuss the technique’s adaptability for surface enhanced nano-scale spectroscopy.

© 2006 Optical Society of America

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  4. A. J. Haes and R. P. Van Duyne, “A unified view of propagating and localized surface plasmon resonance biosensors,” Anal. Bioanal. Chem. 379, 920–930 (2004).
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  5. J. B. Jackson and N. J. Halas, “Surface-enhanced Raman scattering on tunable plasmonic nanoparticle substrates,” Proc. Natl. Acad. Sci. USA 101, 17930–17935 (2004).
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  9. H. Ditlbacher, J. R. Krenn, G. Schider, A. Leitner, and F. R. Aussenegg, “Two-dimensional optics with surface plasmon polaritons,” Appl. Phys. Lett. 81, 762–1764 (2002).
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    [CrossRef] [PubMed]
  11. H. Ditlbacher, J. R. Krenn, A. Leitner, and F. R. Aussenegg, “Surface plasmon polariton-based optical beam profiler,” Opt. Lett. 29, 1408–1410 (2004).
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  12. M. Salerno, J. R. Krenn, B. Lamprecht, G. Schider, H. Ditlbacher, N. Felidj, A. Leitner, and F. R. Aussenegg, “Plasmon polaritons in metal nanostructures: the optoelectronic route to nanotechnology,” Opto-Electronics Rev. 10, 217–224 (2002).
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  15. J. Aizpurua, P. Hanarp, D. S. Sutherland, M. Kall, G. W. Bryant, and F. J. G. de Abajo, “Optical properties of gold nanorings,” Phys. Rev. Lett. 90, 057401 (2003).
    [CrossRef] [PubMed]
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    [CrossRef]
  23. J. C. Weeber, M. U. Gonzalez, A. L. Baudrion, and A. Dereux, “Surface plasmon routing along right angle bent metal strips,” Appl. Phys. Lett. 87, 221101 (2005).
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  26. J. Seidel, S. Grafstrom, L. Eng, and L. Bischoff, “Surface plasmon transmission across narrow grooves in thin silver films,” Appl. Phys. Lett. 82, 1368–1370 (2003).
    [CrossRef]
  27. A. Bouhelier, T. Huser, H. Tamaru, H. J. Guntherodt, D. W. Pohl, F. I. Baida, and D. Van Labeke, “Plasmon optics of structured silver films,” Phys. Rev. B 63, 155404 (2001).
    [CrossRef]
  28. Z. W. Liu, Q. H. Wei, and X. Zhang, “Surface plasmon interference nanolithography,” Nano. Lett. 5, 957–961 (2005).
    [CrossRef] [PubMed]
  29. P. B. Johnson and R. W. Christy, “Optical-constants of noble-metals,” Phys. Rev. B 6, 4370–4379 (1972).
    [CrossRef]
  30. S. R. Sershen, S. L. Westcott, N. J. Halas, and J. L. West, “Independent optically addressable nanoparticl-epolymer optomechanical composites,” Appl. Phys. Lett. 80, 4609–4611 (2002).
    [CrossRef]
  31. N. Halas, “Playing with plasmons. Tuning the optical resonant properties of metallic nanoshells,” MRS Bulletin 30, 362–367 (2005).
    [CrossRef]

2005 (13)

A. Dahlin, M. Zach, T. Rindzevicius, M. Kall, D. S. Sutherland, and F. Hook, “Localized surface plasmon resonance sensing of lipid-membrane-mediated biorecognition events,” J. Am. Chem. Soc. 127, 5043–5048 (2005).
[CrossRef] [PubMed]

S. A. Maier and H. A. Atwater, “Plasmonics: Localization and guiding of electromagnetic energy in metal/dielectric structures,” J. Appl. Phys. 98, 011101 (2005).
[CrossRef]

C. L. Haynes, A. D. McFarland, and R. P. Van Duyne, “Surface-enhanced Raman spectroscopy,” Anal. Chem. 77, 338A–346A (2005).
[CrossRef]

A. J. Haes, C. L. Haynes, A. D. McFarland, G. C. Schatz, R. P. Van Duyne, and S. L. Zou, “Plasmonic materials for surface-enhanced sensing and spectroscopy,” MRS Bulletin 30, 368–375 (2005).
[CrossRef]

A. D. McFarland, M. A. Young, J. A. Dieringer, and R. P. Van Duyne, “Wavelength-scanned surface-enhanced Raman excitation spectroscopy,” J. Phys. Chem. B 109, 11279–11285 (2005).
[CrossRef]

Z. W. Liu, J. M. Steele, W. Srituravanich, Y. Pikus, C. Sun, and X. Zhang, “Focusing surface plasmons with a plasmonic lens,” Nano. Lett. 5, 1726–1729 (2005).
[CrossRef] [PubMed]

L. L. Yin, V. K. Vlasko-Vlasov, J. Pearson, J. M. Hiller, J. Hua, U. Welp, D. E. Brown, and C. W. Kimball, “Subwavelength focusing and guiding of surface plasmons,” Nano. Lett. 5, 1399–1402 (2005).
[CrossRef] [PubMed]

A. Drezet, A. L. Stepanov, H. Ditlbacher, A. Hohenau, B. Steinberger, F. R. Aussenegg, A. Leitner, and J. R. Krenn, “Surface plasmon propagation in an elliptical corral,” Appl. Phys. Lett. 86, 074104 (2005).
[CrossRef]

A. L. Stepanov, J. R. Krenn, H. Ditlbacher, A. Hohenau, A. Drezet, B. Steinberger, A. Leitner, and F. R. Aussenegg, “Quantitative analysis of surface plasmon interaction with silver nanoparticles,” Opt. Lett. 30, 1524–1526 (2005).
[CrossRef] [PubMed]

J. C. Weeber, M. U. Gonzalez, A. L. Baudrion, and A. Dereux, “Surface plasmon routing along right angle bent metal strips,” Appl. Phys. Lett. 87, 221101 (2005).
[CrossRef]

S. H. Chang, S. K. Gray, and G. C. Schatz, “Surface plasmon generation and light transmission by isolated nanoholes and arrays of nanoholes in thin metal films,” Opt. Express 13, 3150–3165 (2005).
[CrossRef] [PubMed]

Z. W. Liu, Q. H. Wei, and X. Zhang, “Surface plasmon interference nanolithography,” Nano. Lett. 5, 957–961 (2005).
[CrossRef] [PubMed]

N. Halas, “Playing with plasmons. Tuning the optical resonant properties of metallic nanoshells,” MRS Bulletin 30, 362–367 (2005).
[CrossRef]

2004 (7)

J. C. Weeber, Y. Lacroute, A. Dereux, E. Devaux, T. Ebbesen, C. Girard, M. U. Gonzalez, and A. L. Baudrion, “Near-field characterization of Bragg mirrors engraved in surface plasmon waveguides,” Phys. Rev. B 70, 235406 (2004).
[CrossRef]

H. Ditlbacher, J. R. Krenn, A. Leitner, and F. R. Aussenegg, “Surface plasmon polariton-based optical beam profiler,” Opt. Lett. 29, 1408–1410 (2004).
[CrossRef] [PubMed]

F. Tam, C. Moran, and N. Halas, “Geometrical parameters controlling sensitivity of nanoshell plasmon resonances to changes in dielectric environment,” J. Phys. Chem. B 108, 17290–17294 (2004).
[CrossRef]

N. Nath and A. Chilkoti, “Label-free biosensing by surface plasmon resonance of nanoparticles on glass: Optimization of nanoparticle size,” Anal. Chem. 76, 5370–5378 (2004).
[CrossRef] [PubMed]

A. J. Haes and R. P. Van Duyne, “A unified view of propagating and localized surface plasmon resonance biosensors,” Anal. Bioanal. Chem. 379, 920–930 (2004).
[CrossRef] [PubMed]

J. B. Jackson and N. J. Halas, “Surface-enhanced Raman scattering on tunable plasmonic nanoparticle substrates,” Proc. Natl. Acad. Sci. USA 101, 17930–17935 (2004).
[CrossRef] [PubMed]

E. Hutter and J. H. Fendler, “Exploitation of localized surface plasmon resonance,” Adv. Mater. 16, 1685–1706 (2004).
[CrossRef]

2003 (4)

J. Aizpurua, P. Hanarp, D. S. Sutherland, M. Kall, G. W. Bryant, and F. J. G. de Abajo, “Optical properties of gold nanorings,” Phys. Rev. Lett. 90, 057401 (2003).
[CrossRef] [PubMed]

A. D. McFarland and R. P. Van Duyne, “Single silver nanoparticles as real-time optical sensors with zeptomole sensitivity,” Nano. Lett. 3, 1057–1062 (2003).
[CrossRef]

H. Ditlbacher, J. R. Krenn, A. Hohenau, A. Leitner, and F. R. Aussenegg, “Efficiency of local light-plasmon coupling,” Appl. Phys. Lett. 83, 3665–3667 (2003).
[CrossRef]

J. Seidel, S. Grafstrom, L. Eng, and L. Bischoff, “Surface plasmon transmission across narrow grooves in thin silver films,” Appl. Phys. Lett. 82, 1368–1370 (2003).
[CrossRef]

2002 (3)

M. Salerno, J. R. Krenn, B. Lamprecht, G. Schider, H. Ditlbacher, N. Felidj, A. Leitner, and F. R. Aussenegg, “Plasmon polaritons in metal nanostructures: the optoelectronic route to nanotechnology,” Opto-Electronics Rev. 10, 217–224 (2002).

S. R. Sershen, S. L. Westcott, N. J. Halas, and J. L. West, “Independent optically addressable nanoparticl-epolymer optomechanical composites,” Appl. Phys. Lett. 80, 4609–4611 (2002).
[CrossRef]

H. Ditlbacher, J. R. Krenn, G. Schider, A. Leitner, and F. R. Aussenegg, “Two-dimensional optics with surface plasmon polaritons,” Appl. Phys. Lett. 81, 762–1764 (2002).
[CrossRef]

2001 (1)

A. Bouhelier, T. Huser, H. Tamaru, H. J. Guntherodt, D. W. Pohl, F. I. Baida, and D. Van Labeke, “Plasmon optics of structured silver films,” Phys. Rev. B 63, 155404 (2001).
[CrossRef]

1972 (1)

P. B. Johnson and R. W. Christy, “Optical-constants of noble-metals,” Phys. Rev. B 6, 4370–4379 (1972).
[CrossRef]

Aizpurua, J.

J. Aizpurua, P. Hanarp, D. S. Sutherland, M. Kall, G. W. Bryant, and F. J. G. de Abajo, “Optical properties of gold nanorings,” Phys. Rev. Lett. 90, 057401 (2003).
[CrossRef] [PubMed]

Atwater, H. A.

S. A. Maier and H. A. Atwater, “Plasmonics: Localization and guiding of electromagnetic energy in metal/dielectric structures,” J. Appl. Phys. 98, 011101 (2005).
[CrossRef]

Aussenegg, F. R.

A. L. Stepanov, J. R. Krenn, H. Ditlbacher, A. Hohenau, A. Drezet, B. Steinberger, A. Leitner, and F. R. Aussenegg, “Quantitative analysis of surface plasmon interaction with silver nanoparticles,” Opt. Lett. 30, 1524–1526 (2005).
[CrossRef] [PubMed]

A. Drezet, A. L. Stepanov, H. Ditlbacher, A. Hohenau, B. Steinberger, F. R. Aussenegg, A. Leitner, and J. R. Krenn, “Surface plasmon propagation in an elliptical corral,” Appl. Phys. Lett. 86, 074104 (2005).
[CrossRef]

H. Ditlbacher, J. R. Krenn, A. Leitner, and F. R. Aussenegg, “Surface plasmon polariton-based optical beam profiler,” Opt. Lett. 29, 1408–1410 (2004).
[CrossRef] [PubMed]

H. Ditlbacher, J. R. Krenn, A. Hohenau, A. Leitner, and F. R. Aussenegg, “Efficiency of local light-plasmon coupling,” Appl. Phys. Lett. 83, 3665–3667 (2003).
[CrossRef]

M. Salerno, J. R. Krenn, B. Lamprecht, G. Schider, H. Ditlbacher, N. Felidj, A. Leitner, and F. R. Aussenegg, “Plasmon polaritons in metal nanostructures: the optoelectronic route to nanotechnology,” Opto-Electronics Rev. 10, 217–224 (2002).

H. Ditlbacher, J. R. Krenn, G. Schider, A. Leitner, and F. R. Aussenegg, “Two-dimensional optics with surface plasmon polaritons,” Appl. Phys. Lett. 81, 762–1764 (2002).
[CrossRef]

Baida, F. I.

A. Bouhelier, T. Huser, H. Tamaru, H. J. Guntherodt, D. W. Pohl, F. I. Baida, and D. Van Labeke, “Plasmon optics of structured silver films,” Phys. Rev. B 63, 155404 (2001).
[CrossRef]

Baudrion, A. L.

J. C. Weeber, M. U. Gonzalez, A. L. Baudrion, and A. Dereux, “Surface plasmon routing along right angle bent metal strips,” Appl. Phys. Lett. 87, 221101 (2005).
[CrossRef]

J. C. Weeber, Y. Lacroute, A. Dereux, E. Devaux, T. Ebbesen, C. Girard, M. U. Gonzalez, and A. L. Baudrion, “Near-field characterization of Bragg mirrors engraved in surface plasmon waveguides,” Phys. Rev. B 70, 235406 (2004).
[CrossRef]

Bischoff, L.

J. Seidel, S. Grafstrom, L. Eng, and L. Bischoff, “Surface plasmon transmission across narrow grooves in thin silver films,” Appl. Phys. Lett. 82, 1368–1370 (2003).
[CrossRef]

Bouhelier, A.

A. Bouhelier, T. Huser, H. Tamaru, H. J. Guntherodt, D. W. Pohl, F. I. Baida, and D. Van Labeke, “Plasmon optics of structured silver films,” Phys. Rev. B 63, 155404 (2001).
[CrossRef]

Brown, D. E.

L. L. Yin, V. K. Vlasko-Vlasov, J. Pearson, J. M. Hiller, J. Hua, U. Welp, D. E. Brown, and C. W. Kimball, “Subwavelength focusing and guiding of surface plasmons,” Nano. Lett. 5, 1399–1402 (2005).
[CrossRef] [PubMed]

Bryant, G. W.

J. Aizpurua, P. Hanarp, D. S. Sutherland, M. Kall, G. W. Bryant, and F. J. G. de Abajo, “Optical properties of gold nanorings,” Phys. Rev. Lett. 90, 057401 (2003).
[CrossRef] [PubMed]

Chang, S. H.

Chilkoti, A.

N. Nath and A. Chilkoti, “Label-free biosensing by surface plasmon resonance of nanoparticles on glass: Optimization of nanoparticle size,” Anal. Chem. 76, 5370–5378 (2004).
[CrossRef] [PubMed]

Christy, R. W.

P. B. Johnson and R. W. Christy, “Optical-constants of noble-metals,” Phys. Rev. B 6, 4370–4379 (1972).
[CrossRef]

Dahlin, A.

A. Dahlin, M. Zach, T. Rindzevicius, M. Kall, D. S. Sutherland, and F. Hook, “Localized surface plasmon resonance sensing of lipid-membrane-mediated biorecognition events,” J. Am. Chem. Soc. 127, 5043–5048 (2005).
[CrossRef] [PubMed]

de Abajo, F. J. G.

J. Aizpurua, P. Hanarp, D. S. Sutherland, M. Kall, G. W. Bryant, and F. J. G. de Abajo, “Optical properties of gold nanorings,” Phys. Rev. Lett. 90, 057401 (2003).
[CrossRef] [PubMed]

Dereux, A.

J. C. Weeber, M. U. Gonzalez, A. L. Baudrion, and A. Dereux, “Surface plasmon routing along right angle bent metal strips,” Appl. Phys. Lett. 87, 221101 (2005).
[CrossRef]

J. C. Weeber, Y. Lacroute, A. Dereux, E. Devaux, T. Ebbesen, C. Girard, M. U. Gonzalez, and A. L. Baudrion, “Near-field characterization of Bragg mirrors engraved in surface plasmon waveguides,” Phys. Rev. B 70, 235406 (2004).
[CrossRef]

Devaux, E.

J. C. Weeber, Y. Lacroute, A. Dereux, E. Devaux, T. Ebbesen, C. Girard, M. U. Gonzalez, and A. L. Baudrion, “Near-field characterization of Bragg mirrors engraved in surface plasmon waveguides,” Phys. Rev. B 70, 235406 (2004).
[CrossRef]

Dieringer, J. A.

A. D. McFarland, M. A. Young, J. A. Dieringer, and R. P. Van Duyne, “Wavelength-scanned surface-enhanced Raman excitation spectroscopy,” J. Phys. Chem. B 109, 11279–11285 (2005).
[CrossRef]

Ditlbacher, H.

A. L. Stepanov, J. R. Krenn, H. Ditlbacher, A. Hohenau, A. Drezet, B. Steinberger, A. Leitner, and F. R. Aussenegg, “Quantitative analysis of surface plasmon interaction with silver nanoparticles,” Opt. Lett. 30, 1524–1526 (2005).
[CrossRef] [PubMed]

A. Drezet, A. L. Stepanov, H. Ditlbacher, A. Hohenau, B. Steinberger, F. R. Aussenegg, A. Leitner, and J. R. Krenn, “Surface plasmon propagation in an elliptical corral,” Appl. Phys. Lett. 86, 074104 (2005).
[CrossRef]

H. Ditlbacher, J. R. Krenn, A. Leitner, and F. R. Aussenegg, “Surface plasmon polariton-based optical beam profiler,” Opt. Lett. 29, 1408–1410 (2004).
[CrossRef] [PubMed]

H. Ditlbacher, J. R. Krenn, A. Hohenau, A. Leitner, and F. R. Aussenegg, “Efficiency of local light-plasmon coupling,” Appl. Phys. Lett. 83, 3665–3667 (2003).
[CrossRef]

M. Salerno, J. R. Krenn, B. Lamprecht, G. Schider, H. Ditlbacher, N. Felidj, A. Leitner, and F. R. Aussenegg, “Plasmon polaritons in metal nanostructures: the optoelectronic route to nanotechnology,” Opto-Electronics Rev. 10, 217–224 (2002).

H. Ditlbacher, J. R. Krenn, G. Schider, A. Leitner, and F. R. Aussenegg, “Two-dimensional optics with surface plasmon polaritons,” Appl. Phys. Lett. 81, 762–1764 (2002).
[CrossRef]

Drezet, A.

A. L. Stepanov, J. R. Krenn, H. Ditlbacher, A. Hohenau, A. Drezet, B. Steinberger, A. Leitner, and F. R. Aussenegg, “Quantitative analysis of surface plasmon interaction with silver nanoparticles,” Opt. Lett. 30, 1524–1526 (2005).
[CrossRef] [PubMed]

A. Drezet, A. L. Stepanov, H. Ditlbacher, A. Hohenau, B. Steinberger, F. R. Aussenegg, A. Leitner, and J. R. Krenn, “Surface plasmon propagation in an elliptical corral,” Appl. Phys. Lett. 86, 074104 (2005).
[CrossRef]

Ebbesen, T.

J. C. Weeber, Y. Lacroute, A. Dereux, E. Devaux, T. Ebbesen, C. Girard, M. U. Gonzalez, and A. L. Baudrion, “Near-field characterization of Bragg mirrors engraved in surface plasmon waveguides,” Phys. Rev. B 70, 235406 (2004).
[CrossRef]

Eng, L.

J. Seidel, S. Grafstrom, L. Eng, and L. Bischoff, “Surface plasmon transmission across narrow grooves in thin silver films,” Appl. Phys. Lett. 82, 1368–1370 (2003).
[CrossRef]

Felidj, N.

M. Salerno, J. R. Krenn, B. Lamprecht, G. Schider, H. Ditlbacher, N. Felidj, A. Leitner, and F. R. Aussenegg, “Plasmon polaritons in metal nanostructures: the optoelectronic route to nanotechnology,” Opto-Electronics Rev. 10, 217–224 (2002).

Fendler, J. H.

E. Hutter and J. H. Fendler, “Exploitation of localized surface plasmon resonance,” Adv. Mater. 16, 1685–1706 (2004).
[CrossRef]

Girard, C.

J. C. Weeber, Y. Lacroute, A. Dereux, E. Devaux, T. Ebbesen, C. Girard, M. U. Gonzalez, and A. L. Baudrion, “Near-field characterization of Bragg mirrors engraved in surface plasmon waveguides,” Phys. Rev. B 70, 235406 (2004).
[CrossRef]

Gonzalez, M. U.

J. C. Weeber, M. U. Gonzalez, A. L. Baudrion, and A. Dereux, “Surface plasmon routing along right angle bent metal strips,” Appl. Phys. Lett. 87, 221101 (2005).
[CrossRef]

J. C. Weeber, Y. Lacroute, A. Dereux, E. Devaux, T. Ebbesen, C. Girard, M. U. Gonzalez, and A. L. Baudrion, “Near-field characterization of Bragg mirrors engraved in surface plasmon waveguides,” Phys. Rev. B 70, 235406 (2004).
[CrossRef]

Grafstrom, S.

J. Seidel, S. Grafstrom, L. Eng, and L. Bischoff, “Surface plasmon transmission across narrow grooves in thin silver films,” Appl. Phys. Lett. 82, 1368–1370 (2003).
[CrossRef]

Gray, S. K.

Guntherodt, H. J.

A. Bouhelier, T. Huser, H. Tamaru, H. J. Guntherodt, D. W. Pohl, F. I. Baida, and D. Van Labeke, “Plasmon optics of structured silver films,” Phys. Rev. B 63, 155404 (2001).
[CrossRef]

Haes, A. J.

A. J. Haes, C. L. Haynes, A. D. McFarland, G. C. Schatz, R. P. Van Duyne, and S. L. Zou, “Plasmonic materials for surface-enhanced sensing and spectroscopy,” MRS Bulletin 30, 368–375 (2005).
[CrossRef]

A. J. Haes and R. P. Van Duyne, “A unified view of propagating and localized surface plasmon resonance biosensors,” Anal. Bioanal. Chem. 379, 920–930 (2004).
[CrossRef] [PubMed]

Halas, N.

N. Halas, “Playing with plasmons. Tuning the optical resonant properties of metallic nanoshells,” MRS Bulletin 30, 362–367 (2005).
[CrossRef]

F. Tam, C. Moran, and N. Halas, “Geometrical parameters controlling sensitivity of nanoshell plasmon resonances to changes in dielectric environment,” J. Phys. Chem. B 108, 17290–17294 (2004).
[CrossRef]

Halas, N. J.

J. B. Jackson and N. J. Halas, “Surface-enhanced Raman scattering on tunable plasmonic nanoparticle substrates,” Proc. Natl. Acad. Sci. USA 101, 17930–17935 (2004).
[CrossRef] [PubMed]

S. R. Sershen, S. L. Westcott, N. J. Halas, and J. L. West, “Independent optically addressable nanoparticl-epolymer optomechanical composites,” Appl. Phys. Lett. 80, 4609–4611 (2002).
[CrossRef]

Hanarp, P.

J. Aizpurua, P. Hanarp, D. S. Sutherland, M. Kall, G. W. Bryant, and F. J. G. de Abajo, “Optical properties of gold nanorings,” Phys. Rev. Lett. 90, 057401 (2003).
[CrossRef] [PubMed]

Haynes, C. L.

C. L. Haynes, A. D. McFarland, and R. P. Van Duyne, “Surface-enhanced Raman spectroscopy,” Anal. Chem. 77, 338A–346A (2005).
[CrossRef]

A. J. Haes, C. L. Haynes, A. D. McFarland, G. C. Schatz, R. P. Van Duyne, and S. L. Zou, “Plasmonic materials for surface-enhanced sensing and spectroscopy,” MRS Bulletin 30, 368–375 (2005).
[CrossRef]

Hiller, J. M.

L. L. Yin, V. K. Vlasko-Vlasov, J. Pearson, J. M. Hiller, J. Hua, U. Welp, D. E. Brown, and C. W. Kimball, “Subwavelength focusing and guiding of surface plasmons,” Nano. Lett. 5, 1399–1402 (2005).
[CrossRef] [PubMed]

Hohenau, A.

A. Drezet, A. L. Stepanov, H. Ditlbacher, A. Hohenau, B. Steinberger, F. R. Aussenegg, A. Leitner, and J. R. Krenn, “Surface plasmon propagation in an elliptical corral,” Appl. Phys. Lett. 86, 074104 (2005).
[CrossRef]

A. L. Stepanov, J. R. Krenn, H. Ditlbacher, A. Hohenau, A. Drezet, B. Steinberger, A. Leitner, and F. R. Aussenegg, “Quantitative analysis of surface plasmon interaction with silver nanoparticles,” Opt. Lett. 30, 1524–1526 (2005).
[CrossRef] [PubMed]

H. Ditlbacher, J. R. Krenn, A. Hohenau, A. Leitner, and F. R. Aussenegg, “Efficiency of local light-plasmon coupling,” Appl. Phys. Lett. 83, 3665–3667 (2003).
[CrossRef]

Hook, F.

A. Dahlin, M. Zach, T. Rindzevicius, M. Kall, D. S. Sutherland, and F. Hook, “Localized surface plasmon resonance sensing of lipid-membrane-mediated biorecognition events,” J. Am. Chem. Soc. 127, 5043–5048 (2005).
[CrossRef] [PubMed]

Hua, J.

L. L. Yin, V. K. Vlasko-Vlasov, J. Pearson, J. M. Hiller, J. Hua, U. Welp, D. E. Brown, and C. W. Kimball, “Subwavelength focusing and guiding of surface plasmons,” Nano. Lett. 5, 1399–1402 (2005).
[CrossRef] [PubMed]

Huser, T.

A. Bouhelier, T. Huser, H. Tamaru, H. J. Guntherodt, D. W. Pohl, F. I. Baida, and D. Van Labeke, “Plasmon optics of structured silver films,” Phys. Rev. B 63, 155404 (2001).
[CrossRef]

Hutter, E.

E. Hutter and J. H. Fendler, “Exploitation of localized surface plasmon resonance,” Adv. Mater. 16, 1685–1706 (2004).
[CrossRef]

Jackson, J. B.

J. B. Jackson and N. J. Halas, “Surface-enhanced Raman scattering on tunable plasmonic nanoparticle substrates,” Proc. Natl. Acad. Sci. USA 101, 17930–17935 (2004).
[CrossRef] [PubMed]

Johnson, P. B.

P. B. Johnson and R. W. Christy, “Optical-constants of noble-metals,” Phys. Rev. B 6, 4370–4379 (1972).
[CrossRef]

Kall, M.

A. Dahlin, M. Zach, T. Rindzevicius, M. Kall, D. S. Sutherland, and F. Hook, “Localized surface plasmon resonance sensing of lipid-membrane-mediated biorecognition events,” J. Am. Chem. Soc. 127, 5043–5048 (2005).
[CrossRef] [PubMed]

J. Aizpurua, P. Hanarp, D. S. Sutherland, M. Kall, G. W. Bryant, and F. J. G. de Abajo, “Optical properties of gold nanorings,” Phys. Rev. Lett. 90, 057401 (2003).
[CrossRef] [PubMed]

Kimball, C. W.

L. L. Yin, V. K. Vlasko-Vlasov, J. Pearson, J. M. Hiller, J. Hua, U. Welp, D. E. Brown, and C. W. Kimball, “Subwavelength focusing and guiding of surface plasmons,” Nano. Lett. 5, 1399–1402 (2005).
[CrossRef] [PubMed]

Krenn, J. R.

A. Drezet, A. L. Stepanov, H. Ditlbacher, A. Hohenau, B. Steinberger, F. R. Aussenegg, A. Leitner, and J. R. Krenn, “Surface plasmon propagation in an elliptical corral,” Appl. Phys. Lett. 86, 074104 (2005).
[CrossRef]

A. L. Stepanov, J. R. Krenn, H. Ditlbacher, A. Hohenau, A. Drezet, B. Steinberger, A. Leitner, and F. R. Aussenegg, “Quantitative analysis of surface plasmon interaction with silver nanoparticles,” Opt. Lett. 30, 1524–1526 (2005).
[CrossRef] [PubMed]

H. Ditlbacher, J. R. Krenn, A. Leitner, and F. R. Aussenegg, “Surface plasmon polariton-based optical beam profiler,” Opt. Lett. 29, 1408–1410 (2004).
[CrossRef] [PubMed]

H. Ditlbacher, J. R. Krenn, A. Hohenau, A. Leitner, and F. R. Aussenegg, “Efficiency of local light-plasmon coupling,” Appl. Phys. Lett. 83, 3665–3667 (2003).
[CrossRef]

M. Salerno, J. R. Krenn, B. Lamprecht, G. Schider, H. Ditlbacher, N. Felidj, A. Leitner, and F. R. Aussenegg, “Plasmon polaritons in metal nanostructures: the optoelectronic route to nanotechnology,” Opto-Electronics Rev. 10, 217–224 (2002).

H. Ditlbacher, J. R. Krenn, G. Schider, A. Leitner, and F. R. Aussenegg, “Two-dimensional optics with surface plasmon polaritons,” Appl. Phys. Lett. 81, 762–1764 (2002).
[CrossRef]

Lacroute, Y.

J. C. Weeber, Y. Lacroute, A. Dereux, E. Devaux, T. Ebbesen, C. Girard, M. U. Gonzalez, and A. L. Baudrion, “Near-field characterization of Bragg mirrors engraved in surface plasmon waveguides,” Phys. Rev. B 70, 235406 (2004).
[CrossRef]

Lamprecht, B.

M. Salerno, J. R. Krenn, B. Lamprecht, G. Schider, H. Ditlbacher, N. Felidj, A. Leitner, and F. R. Aussenegg, “Plasmon polaritons in metal nanostructures: the optoelectronic route to nanotechnology,” Opto-Electronics Rev. 10, 217–224 (2002).

Lee, H.

Z. W. Liu, J. M. Steele, H. Lee, and X. Zhang, “Tuning the focus of a plasmonic lens by the incident angle,” In press Appl. Phys. Lett (2006).

Leitner, A.

A. Drezet, A. L. Stepanov, H. Ditlbacher, A. Hohenau, B. Steinberger, F. R. Aussenegg, A. Leitner, and J. R. Krenn, “Surface plasmon propagation in an elliptical corral,” Appl. Phys. Lett. 86, 074104 (2005).
[CrossRef]

A. L. Stepanov, J. R. Krenn, H. Ditlbacher, A. Hohenau, A. Drezet, B. Steinberger, A. Leitner, and F. R. Aussenegg, “Quantitative analysis of surface plasmon interaction with silver nanoparticles,” Opt. Lett. 30, 1524–1526 (2005).
[CrossRef] [PubMed]

H. Ditlbacher, J. R. Krenn, A. Leitner, and F. R. Aussenegg, “Surface plasmon polariton-based optical beam profiler,” Opt. Lett. 29, 1408–1410 (2004).
[CrossRef] [PubMed]

H. Ditlbacher, J. R. Krenn, A. Hohenau, A. Leitner, and F. R. Aussenegg, “Efficiency of local light-plasmon coupling,” Appl. Phys. Lett. 83, 3665–3667 (2003).
[CrossRef]

M. Salerno, J. R. Krenn, B. Lamprecht, G. Schider, H. Ditlbacher, N. Felidj, A. Leitner, and F. R. Aussenegg, “Plasmon polaritons in metal nanostructures: the optoelectronic route to nanotechnology,” Opto-Electronics Rev. 10, 217–224 (2002).

H. Ditlbacher, J. R. Krenn, G. Schider, A. Leitner, and F. R. Aussenegg, “Two-dimensional optics with surface plasmon polaritons,” Appl. Phys. Lett. 81, 762–1764 (2002).
[CrossRef]

Liu, Z. W.

Z. W. Liu, Q. H. Wei, and X. Zhang, “Surface plasmon interference nanolithography,” Nano. Lett. 5, 957–961 (2005).
[CrossRef] [PubMed]

Z. W. Liu, J. M. Steele, W. Srituravanich, Y. Pikus, C. Sun, and X. Zhang, “Focusing surface plasmons with a plasmonic lens,” Nano. Lett. 5, 1726–1729 (2005).
[CrossRef] [PubMed]

Z. W. Liu, J. M. Steele, H. Lee, and X. Zhang, “Tuning the focus of a plasmonic lens by the incident angle,” In press Appl. Phys. Lett (2006).

Maier, S. A.

S. A. Maier and H. A. Atwater, “Plasmonics: Localization and guiding of electromagnetic energy in metal/dielectric structures,” J. Appl. Phys. 98, 011101 (2005).
[CrossRef]

McFarland, A. D.

A. D. McFarland, M. A. Young, J. A. Dieringer, and R. P. Van Duyne, “Wavelength-scanned surface-enhanced Raman excitation spectroscopy,” J. Phys. Chem. B 109, 11279–11285 (2005).
[CrossRef]

A. J. Haes, C. L. Haynes, A. D. McFarland, G. C. Schatz, R. P. Van Duyne, and S. L. Zou, “Plasmonic materials for surface-enhanced sensing and spectroscopy,” MRS Bulletin 30, 368–375 (2005).
[CrossRef]

C. L. Haynes, A. D. McFarland, and R. P. Van Duyne, “Surface-enhanced Raman spectroscopy,” Anal. Chem. 77, 338A–346A (2005).
[CrossRef]

A. D. McFarland and R. P. Van Duyne, “Single silver nanoparticles as real-time optical sensors with zeptomole sensitivity,” Nano. Lett. 3, 1057–1062 (2003).
[CrossRef]

Moran, C.

F. Tam, C. Moran, and N. Halas, “Geometrical parameters controlling sensitivity of nanoshell plasmon resonances to changes in dielectric environment,” J. Phys. Chem. B 108, 17290–17294 (2004).
[CrossRef]

Nath, N.

N. Nath and A. Chilkoti, “Label-free biosensing by surface plasmon resonance of nanoparticles on glass: Optimization of nanoparticle size,” Anal. Chem. 76, 5370–5378 (2004).
[CrossRef] [PubMed]

Pearson, J.

L. L. Yin, V. K. Vlasko-Vlasov, J. Pearson, J. M. Hiller, J. Hua, U. Welp, D. E. Brown, and C. W. Kimball, “Subwavelength focusing and guiding of surface plasmons,” Nano. Lett. 5, 1399–1402 (2005).
[CrossRef] [PubMed]

Pikus, Y.

Z. W. Liu, J. M. Steele, W. Srituravanich, Y. Pikus, C. Sun, and X. Zhang, “Focusing surface plasmons with a plasmonic lens,” Nano. Lett. 5, 1726–1729 (2005).
[CrossRef] [PubMed]

Pohl, D. W.

A. Bouhelier, T. Huser, H. Tamaru, H. J. Guntherodt, D. W. Pohl, F. I. Baida, and D. Van Labeke, “Plasmon optics of structured silver films,” Phys. Rev. B 63, 155404 (2001).
[CrossRef]

Raether, H.

H. Raether, Surface Plasmons on Smooth and Rough Surfaces and on Gratings. (Springer-Verlag: Berlin, 1988).

Rindzevicius, T.

A. Dahlin, M. Zach, T. Rindzevicius, M. Kall, D. S. Sutherland, and F. Hook, “Localized surface plasmon resonance sensing of lipid-membrane-mediated biorecognition events,” J. Am. Chem. Soc. 127, 5043–5048 (2005).
[CrossRef] [PubMed]

Salerno, M.

M. Salerno, J. R. Krenn, B. Lamprecht, G. Schider, H. Ditlbacher, N. Felidj, A. Leitner, and F. R. Aussenegg, “Plasmon polaritons in metal nanostructures: the optoelectronic route to nanotechnology,” Opto-Electronics Rev. 10, 217–224 (2002).

Schatz, G. C.

A. J. Haes, C. L. Haynes, A. D. McFarland, G. C. Schatz, R. P. Van Duyne, and S. L. Zou, “Plasmonic materials for surface-enhanced sensing and spectroscopy,” MRS Bulletin 30, 368–375 (2005).
[CrossRef]

S. H. Chang, S. K. Gray, and G. C. Schatz, “Surface plasmon generation and light transmission by isolated nanoholes and arrays of nanoholes in thin metal films,” Opt. Express 13, 3150–3165 (2005).
[CrossRef] [PubMed]

Schider, G.

H. Ditlbacher, J. R. Krenn, G. Schider, A. Leitner, and F. R. Aussenegg, “Two-dimensional optics with surface plasmon polaritons,” Appl. Phys. Lett. 81, 762–1764 (2002).
[CrossRef]

M. Salerno, J. R. Krenn, B. Lamprecht, G. Schider, H. Ditlbacher, N. Felidj, A. Leitner, and F. R. Aussenegg, “Plasmon polaritons in metal nanostructures: the optoelectronic route to nanotechnology,” Opto-Electronics Rev. 10, 217–224 (2002).

Seidel, J.

J. Seidel, S. Grafstrom, L. Eng, and L. Bischoff, “Surface plasmon transmission across narrow grooves in thin silver films,” Appl. Phys. Lett. 82, 1368–1370 (2003).
[CrossRef]

Sershen, S. R.

S. R. Sershen, S. L. Westcott, N. J. Halas, and J. L. West, “Independent optically addressable nanoparticl-epolymer optomechanical composites,” Appl. Phys. Lett. 80, 4609–4611 (2002).
[CrossRef]

Srituravanich, W.

Z. W. Liu, J. M. Steele, W. Srituravanich, Y. Pikus, C. Sun, and X. Zhang, “Focusing surface plasmons with a plasmonic lens,” Nano. Lett. 5, 1726–1729 (2005).
[CrossRef] [PubMed]

Steele, J. M.

Z. W. Liu, J. M. Steele, W. Srituravanich, Y. Pikus, C. Sun, and X. Zhang, “Focusing surface plasmons with a plasmonic lens,” Nano. Lett. 5, 1726–1729 (2005).
[CrossRef] [PubMed]

Z. W. Liu, J. M. Steele, H. Lee, and X. Zhang, “Tuning the focus of a plasmonic lens by the incident angle,” In press Appl. Phys. Lett (2006).

Steinberger, B.

A. Drezet, A. L. Stepanov, H. Ditlbacher, A. Hohenau, B. Steinberger, F. R. Aussenegg, A. Leitner, and J. R. Krenn, “Surface plasmon propagation in an elliptical corral,” Appl. Phys. Lett. 86, 074104 (2005).
[CrossRef]

A. L. Stepanov, J. R. Krenn, H. Ditlbacher, A. Hohenau, A. Drezet, B. Steinberger, A. Leitner, and F. R. Aussenegg, “Quantitative analysis of surface plasmon interaction with silver nanoparticles,” Opt. Lett. 30, 1524–1526 (2005).
[CrossRef] [PubMed]

Stepanov, A. L.

A. L. Stepanov, J. R. Krenn, H. Ditlbacher, A. Hohenau, A. Drezet, B. Steinberger, A. Leitner, and F. R. Aussenegg, “Quantitative analysis of surface plasmon interaction with silver nanoparticles,” Opt. Lett. 30, 1524–1526 (2005).
[CrossRef] [PubMed]

A. Drezet, A. L. Stepanov, H. Ditlbacher, A. Hohenau, B. Steinberger, F. R. Aussenegg, A. Leitner, and J. R. Krenn, “Surface plasmon propagation in an elliptical corral,” Appl. Phys. Lett. 86, 074104 (2005).
[CrossRef]

Sun, C.

Z. W. Liu, J. M. Steele, W. Srituravanich, Y. Pikus, C. Sun, and X. Zhang, “Focusing surface plasmons with a plasmonic lens,” Nano. Lett. 5, 1726–1729 (2005).
[CrossRef] [PubMed]

Sutherland, D. S.

A. Dahlin, M. Zach, T. Rindzevicius, M. Kall, D. S. Sutherland, and F. Hook, “Localized surface plasmon resonance sensing of lipid-membrane-mediated biorecognition events,” J. Am. Chem. Soc. 127, 5043–5048 (2005).
[CrossRef] [PubMed]

J. Aizpurua, P. Hanarp, D. S. Sutherland, M. Kall, G. W. Bryant, and F. J. G. de Abajo, “Optical properties of gold nanorings,” Phys. Rev. Lett. 90, 057401 (2003).
[CrossRef] [PubMed]

Tam, F.

F. Tam, C. Moran, and N. Halas, “Geometrical parameters controlling sensitivity of nanoshell plasmon resonances to changes in dielectric environment,” J. Phys. Chem. B 108, 17290–17294 (2004).
[CrossRef]

Tamaru, H.

A. Bouhelier, T. Huser, H. Tamaru, H. J. Guntherodt, D. W. Pohl, F. I. Baida, and D. Van Labeke, “Plasmon optics of structured silver films,” Phys. Rev. B 63, 155404 (2001).
[CrossRef]

Van Duyne, R. P.

A. D. McFarland, M. A. Young, J. A. Dieringer, and R. P. Van Duyne, “Wavelength-scanned surface-enhanced Raman excitation spectroscopy,” J. Phys. Chem. B 109, 11279–11285 (2005).
[CrossRef]

A. J. Haes, C. L. Haynes, A. D. McFarland, G. C. Schatz, R. P. Van Duyne, and S. L. Zou, “Plasmonic materials for surface-enhanced sensing and spectroscopy,” MRS Bulletin 30, 368–375 (2005).
[CrossRef]

C. L. Haynes, A. D. McFarland, and R. P. Van Duyne, “Surface-enhanced Raman spectroscopy,” Anal. Chem. 77, 338A–346A (2005).
[CrossRef]

A. J. Haes and R. P. Van Duyne, “A unified view of propagating and localized surface plasmon resonance biosensors,” Anal. Bioanal. Chem. 379, 920–930 (2004).
[CrossRef] [PubMed]

A. D. McFarland and R. P. Van Duyne, “Single silver nanoparticles as real-time optical sensors with zeptomole sensitivity,” Nano. Lett. 3, 1057–1062 (2003).
[CrossRef]

Van Labeke, D.

A. Bouhelier, T. Huser, H. Tamaru, H. J. Guntherodt, D. W. Pohl, F. I. Baida, and D. Van Labeke, “Plasmon optics of structured silver films,” Phys. Rev. B 63, 155404 (2001).
[CrossRef]

Vlasko-Vlasov, V. K.

L. L. Yin, V. K. Vlasko-Vlasov, J. Pearson, J. M. Hiller, J. Hua, U. Welp, D. E. Brown, and C. W. Kimball, “Subwavelength focusing and guiding of surface plasmons,” Nano. Lett. 5, 1399–1402 (2005).
[CrossRef] [PubMed]

Weeber, J. C.

J. C. Weeber, M. U. Gonzalez, A. L. Baudrion, and A. Dereux, “Surface plasmon routing along right angle bent metal strips,” Appl. Phys. Lett. 87, 221101 (2005).
[CrossRef]

J. C. Weeber, Y. Lacroute, A. Dereux, E. Devaux, T. Ebbesen, C. Girard, M. U. Gonzalez, and A. L. Baudrion, “Near-field characterization of Bragg mirrors engraved in surface plasmon waveguides,” Phys. Rev. B 70, 235406 (2004).
[CrossRef]

Wei, Q. H.

Z. W. Liu, Q. H. Wei, and X. Zhang, “Surface plasmon interference nanolithography,” Nano. Lett. 5, 957–961 (2005).
[CrossRef] [PubMed]

Welp, U.

L. L. Yin, V. K. Vlasko-Vlasov, J. Pearson, J. M. Hiller, J. Hua, U. Welp, D. E. Brown, and C. W. Kimball, “Subwavelength focusing and guiding of surface plasmons,” Nano. Lett. 5, 1399–1402 (2005).
[CrossRef] [PubMed]

West, J. L.

S. R. Sershen, S. L. Westcott, N. J. Halas, and J. L. West, “Independent optically addressable nanoparticl-epolymer optomechanical composites,” Appl. Phys. Lett. 80, 4609–4611 (2002).
[CrossRef]

Westcott, S. L.

S. R. Sershen, S. L. Westcott, N. J. Halas, and J. L. West, “Independent optically addressable nanoparticl-epolymer optomechanical composites,” Appl. Phys. Lett. 80, 4609–4611 (2002).
[CrossRef]

Yin, L. L.

L. L. Yin, V. K. Vlasko-Vlasov, J. Pearson, J. M. Hiller, J. Hua, U. Welp, D. E. Brown, and C. W. Kimball, “Subwavelength focusing and guiding of surface plasmons,” Nano. Lett. 5, 1399–1402 (2005).
[CrossRef] [PubMed]

Young, M. A.

A. D. McFarland, M. A. Young, J. A. Dieringer, and R. P. Van Duyne, “Wavelength-scanned surface-enhanced Raman excitation spectroscopy,” J. Phys. Chem. B 109, 11279–11285 (2005).
[CrossRef]

Zach, M.

A. Dahlin, M. Zach, T. Rindzevicius, M. Kall, D. S. Sutherland, and F. Hook, “Localized surface plasmon resonance sensing of lipid-membrane-mediated biorecognition events,” J. Am. Chem. Soc. 127, 5043–5048 (2005).
[CrossRef] [PubMed]

Zhang, X.

Z. W. Liu, J. M. Steele, W. Srituravanich, Y. Pikus, C. Sun, and X. Zhang, “Focusing surface plasmons with a plasmonic lens,” Nano. Lett. 5, 1726–1729 (2005).
[CrossRef] [PubMed]

Z. W. Liu, Q. H. Wei, and X. Zhang, “Surface plasmon interference nanolithography,” Nano. Lett. 5, 957–961 (2005).
[CrossRef] [PubMed]

Z. W. Liu, J. M. Steele, H. Lee, and X. Zhang, “Tuning the focus of a plasmonic lens by the incident angle,” In press Appl. Phys. Lett (2006).

Zou, S. L.

A. J. Haes, C. L. Haynes, A. D. McFarland, G. C. Schatz, R. P. Van Duyne, and S. L. Zou, “Plasmonic materials for surface-enhanced sensing and spectroscopy,” MRS Bulletin 30, 368–375 (2005).
[CrossRef]

Adv. Mater. (1)

E. Hutter and J. H. Fendler, “Exploitation of localized surface plasmon resonance,” Adv. Mater. 16, 1685–1706 (2004).
[CrossRef]

Anal. Bioanal. Chem. (1)

A. J. Haes and R. P. Van Duyne, “A unified view of propagating and localized surface plasmon resonance biosensors,” Anal. Bioanal. Chem. 379, 920–930 (2004).
[CrossRef] [PubMed]

Anal. Chem. (2)

C. L. Haynes, A. D. McFarland, and R. P. Van Duyne, “Surface-enhanced Raman spectroscopy,” Anal. Chem. 77, 338A–346A (2005).
[CrossRef]

N. Nath and A. Chilkoti, “Label-free biosensing by surface plasmon resonance of nanoparticles on glass: Optimization of nanoparticle size,” Anal. Chem. 76, 5370–5378 (2004).
[CrossRef] [PubMed]

Appl. Phys. Lett. (6)

H. Ditlbacher, J. R. Krenn, G. Schider, A. Leitner, and F. R. Aussenegg, “Two-dimensional optics with surface plasmon polaritons,” Appl. Phys. Lett. 81, 762–1764 (2002).
[CrossRef]

A. Drezet, A. L. Stepanov, H. Ditlbacher, A. Hohenau, B. Steinberger, F. R. Aussenegg, A. Leitner, and J. R. Krenn, “Surface plasmon propagation in an elliptical corral,” Appl. Phys. Lett. 86, 074104 (2005).
[CrossRef]

H. Ditlbacher, J. R. Krenn, A. Hohenau, A. Leitner, and F. R. Aussenegg, “Efficiency of local light-plasmon coupling,” Appl. Phys. Lett. 83, 3665–3667 (2003).
[CrossRef]

J. C. Weeber, M. U. Gonzalez, A. L. Baudrion, and A. Dereux, “Surface plasmon routing along right angle bent metal strips,” Appl. Phys. Lett. 87, 221101 (2005).
[CrossRef]

J. Seidel, S. Grafstrom, L. Eng, and L. Bischoff, “Surface plasmon transmission across narrow grooves in thin silver films,” Appl. Phys. Lett. 82, 1368–1370 (2003).
[CrossRef]

S. R. Sershen, S. L. Westcott, N. J. Halas, and J. L. West, “Independent optically addressable nanoparticl-epolymer optomechanical composites,” Appl. Phys. Lett. 80, 4609–4611 (2002).
[CrossRef]

J. Am. Chem. Soc. (1)

A. Dahlin, M. Zach, T. Rindzevicius, M. Kall, D. S. Sutherland, and F. Hook, “Localized surface plasmon resonance sensing of lipid-membrane-mediated biorecognition events,” J. Am. Chem. Soc. 127, 5043–5048 (2005).
[CrossRef] [PubMed]

J. Appl. Phys. (1)

S. A. Maier and H. A. Atwater, “Plasmonics: Localization and guiding of electromagnetic energy in metal/dielectric structures,” J. Appl. Phys. 98, 011101 (2005).
[CrossRef]

J. Phys. Chem. B (2)

A. D. McFarland, M. A. Young, J. A. Dieringer, and R. P. Van Duyne, “Wavelength-scanned surface-enhanced Raman excitation spectroscopy,” J. Phys. Chem. B 109, 11279–11285 (2005).
[CrossRef]

F. Tam, C. Moran, and N. Halas, “Geometrical parameters controlling sensitivity of nanoshell plasmon resonances to changes in dielectric environment,” J. Phys. Chem. B 108, 17290–17294 (2004).
[CrossRef]

MRS Bulletin (2)

N. Halas, “Playing with plasmons. Tuning the optical resonant properties of metallic nanoshells,” MRS Bulletin 30, 362–367 (2005).
[CrossRef]

A. J. Haes, C. L. Haynes, A. D. McFarland, G. C. Schatz, R. P. Van Duyne, and S. L. Zou, “Plasmonic materials for surface-enhanced sensing and spectroscopy,” MRS Bulletin 30, 368–375 (2005).
[CrossRef]

Nano. Lett. (4)

A. D. McFarland and R. P. Van Duyne, “Single silver nanoparticles as real-time optical sensors with zeptomole sensitivity,” Nano. Lett. 3, 1057–1062 (2003).
[CrossRef]

Z. W. Liu, J. M. Steele, W. Srituravanich, Y. Pikus, C. Sun, and X. Zhang, “Focusing surface plasmons with a plasmonic lens,” Nano. Lett. 5, 1726–1729 (2005).
[CrossRef] [PubMed]

L. L. Yin, V. K. Vlasko-Vlasov, J. Pearson, J. M. Hiller, J. Hua, U. Welp, D. E. Brown, and C. W. Kimball, “Subwavelength focusing and guiding of surface plasmons,” Nano. Lett. 5, 1399–1402 (2005).
[CrossRef] [PubMed]

Z. W. Liu, Q. H. Wei, and X. Zhang, “Surface plasmon interference nanolithography,” Nano. Lett. 5, 957–961 (2005).
[CrossRef] [PubMed]

Opt. Express (1)

Opt. Lett. (2)

Opto-Electronics Rev. (1)

M. Salerno, J. R. Krenn, B. Lamprecht, G. Schider, H. Ditlbacher, N. Felidj, A. Leitner, and F. R. Aussenegg, “Plasmon polaritons in metal nanostructures: the optoelectronic route to nanotechnology,” Opto-Electronics Rev. 10, 217–224 (2002).

Phys. Rev. B (3)

A. Bouhelier, T. Huser, H. Tamaru, H. J. Guntherodt, D. W. Pohl, F. I. Baida, and D. Van Labeke, “Plasmon optics of structured silver films,” Phys. Rev. B 63, 155404 (2001).
[CrossRef]

J. C. Weeber, Y. Lacroute, A. Dereux, E. Devaux, T. Ebbesen, C. Girard, M. U. Gonzalez, and A. L. Baudrion, “Near-field characterization of Bragg mirrors engraved in surface plasmon waveguides,” Phys. Rev. B 70, 235406 (2004).
[CrossRef]

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[CrossRef]

Phys. Rev. Lett. (1)

J. Aizpurua, P. Hanarp, D. S. Sutherland, M. Kall, G. W. Bryant, and F. J. G. de Abajo, “Optical properties of gold nanorings,” Phys. Rev. Lett. 90, 057401 (2003).
[CrossRef] [PubMed]

Proc. Natl. Acad. Sci. USA (1)

J. B. Jackson and N. J. Halas, “Surface-enhanced Raman scattering on tunable plasmonic nanoparticle substrates,” Proc. Natl. Acad. Sci. USA 101, 17930–17935 (2004).
[CrossRef] [PubMed]

Other (2)

Z. W. Liu, J. M. Steele, H. Lee, and X. Zhang, “Tuning the focus of a plasmonic lens by the incident angle,” In press Appl. Phys. Lett (2006).

H. Raether, Surface Plasmons on Smooth and Rough Surfaces and on Gratings. (Springer-Verlag: Berlin, 1988).

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Figures (4)

Fig. 1.
Fig. 1.

(a) Experimental scheme for near-field measurements. Circular gratings are cut into a silver film deposited on a quartz substrate. Laser light is normally incident from the quartz side, and the electromagnetic near-field is monitored with a metal coated NSOM tip. (b) SEM image of a sample with 15 rings. The scale bar is 5 microns.

Fig. 2.
Fig. 2.

The near field is modeled as the superposition of the fields from a line of surface plasmon point sources, located at positions ρ n,m . m indicates the ring number and θn is the angular position of the point source from the positive x axis. The near field at a point ρ is simply the sum of contributions from all point sources along each ring, m. The middle ring is modeled to have a radius of 4 µm with the period of the surrounding ring matching experimental values.

Fig. 3.
Fig. 3.

NSOM measurement of the center region of a sample with 4 rings. The rings have a period of 514 nm, equal to the wavelength of incident light. Similar to the one ring case, the intensity is highest in the center of the circle, indicating that the NSOM tip preferentially measures the in-plane component of the near-field. The theoretical results are also plotted, showing good agreement between experiment and simulation.

Fig 4.
Fig 4.

(a) Intensity at the center of the circular grating for increasing number of rings with an incident laser wavelength of 514 nm. Two sets of rings are measured, one with a period G=514 nm and one with G=633 nm. For G=514 nm, the period is close to resonance with the surface plasmon wavelength of 490 nm. The intensity at the center is the result of mostly constructively interfering waves, so the intensity increases with number of rings up to a point, where the intensity levels off. The experimental data matches the simulated data well. For G=633 nm, the period is off resonance with the surface plasmon wavelength such that each ring as a combination of constructively and destructively interfering waves. (b) Intensity at the center of the circular grating for rings with period G=509 nm exactly resonant with the surface plasmon wavelength for an excitation wavelength of 532 nm. The fitting parameter as defined by Eq. (1) for both figures are: phase=0.07π, T=0.88. Lsp=20.4 µm in (a) and 25.2 µm in (b).

Equations (1)

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E n , m SPP = [ R + m G R ] E 0 sin θ n T m e i m Φ e ρ ρ n , m L SPP cos ϕ ρ ρ n , m 1 2 e i k SP ( ρ ρ n , m )

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