Enhanced transmission versus localization of a light pulse by a subwavelength metal slit

S. Kukhlevsky, M. Mechler, L. Csapó, K. Janssens, O. Samek

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

The existence of resonant enhanced transmission and the collimation of light waves by subwavelength slits in metal films [for example, see Ebbesen et al., Nature (London) 391, 667 (1998) and Lezec et al., Science 297, 820 (2002)] leads to the basic question: Can a light pulse be enhanced and simultaneously localized in space and time by a subwavelength slit? To address this question, the spatial distribution of the energy flux of an ultrashort (femtosecond) wave packet diffracted by a subwavelength (nanometer-size) slit was analyzed by using the conventional approach based on the Neerhoff and Mur solution of Maxwell's equations. The results show that a light pulse can be enhanced by orders of magnitude and simultaneously localized in the near-field diffraction zone at the nm and fs scales. Possible applications in nanophotonics are discussed.

Original languageEnglish
Article number195428
Pages (from-to)1-9
Number of pages9
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume70
Issue number19
DOIs
Publication statusPublished - Nov 2004

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slits
Metals
pulses
metals
Nanophotonics
Wave packets
Wave transmission
Maxwell equations
collimation
metal films
Maxwell equation
wave packets
Spatial distribution
near fields
spatial distribution
Diffraction
Fluxes
diffraction
energy

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Enhanced transmission versus localization of a light pulse by a subwavelength metal slit. / Kukhlevsky, S.; Mechler, M.; Csapó, L.; Janssens, K.; Samek, O.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 70, No. 19, 195428, 11.2004, p. 1-9.

Research output: Contribution to journalArticle

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