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Optics Letters

Optics Letters


  • Vol. 23, Iss. 17 — Sep. 1, 1998
  • pp: 1331–1333

Electromagnetic energy transport via linear chains of silver nanoparticles

M. Quinten, A. Leitner, J. R. Krenn, and F. R. Aussenegg  »View Author Affiliations

Optics Letters, Vol. 23, Issue 17, pp. 1331-1333 (1998)

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We propose the idea of a subwavelength-sized light guide represented by a linear chain of spherical metal nanoparticles in which light is transmitted by electrodynamic interparticle coupling. The light-transport properties of this system are investigated by use of model calculations based on generalized Mie theory. Considering Ag particles of 50-nm diameter, we find optimum guiding conditions for an interparticle spacing of 25 nm, and a corresponding 1/e signal-damping length of 900 nm is evaluated. The proposed principle of optical energy transport may be useful for subwavelength transmission lines within integrated optics circuits and for near-field optical microscopy.

© 1998 Optical Society of America

OCIS Codes
(130.0130) Integrated optics : Integrated optics
(130.2790) Integrated optics : Guided waves
(260.3910) Physical optics : Metal optics
(350.3950) Other areas of optics : Micro-optics
(350.4990) Other areas of optics : Particles

M. Quinten, A. Leitner, J. R. Krenn, and F. R. Aussenegg, "Electromagnetic energy transport via linear chains of silver nanoparticles," Opt. Lett. 23, 1331-1333 (1998)

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