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Influence of spatial dispersion in metals on the optical response of deeply subwavelength slit arrays

Publication ,  Journal Article
Dechaux, M; Tichit, PH; Ciracì, C; Benedicto, J; Pollès, R; Centeno, E; Smith, DR; Moreau, A
Published in: Physical Review B
January 13, 2016

In the framework of the hydrodynamic model describing the response of electrons in a metal, we show that arrays of very narrow and shallow metallic slits have an optical response that is influenced by the spatial dispersion in metals arising from the repulsive interaction between electrons. As a simple Fabry-Perot model is not accurate enough to describe the structure's behavior, we propose considering the slits as generalized cavities with two modes, one being propagative and the other evanescent. This very general model allows us to conclude that the impact of spatial dispersion on the propagative mode is the key factor explaining why the whole structure is sensitive to spatial dispersion. As the fabrication of such structures with relatively large gaps compared to previous experiments is within our reach, this work paves the way for future much needed experiments on nonlocality.

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Published In

Physical Review B

DOI

EISSN

2469-9969

ISSN

2469-9950

Publication Date

January 13, 2016

Volume

93

Issue

4

Related Subject Headings

  • 51 Physical sciences
  • 40 Engineering
  • 34 Chemical sciences
 

Citation

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Dechaux, M., Tichit, P. H., Ciracì, C., Benedicto, J., Pollès, R., Centeno, E., … Moreau, A. (2016). Influence of spatial dispersion in metals on the optical response of deeply subwavelength slit arrays. Physical Review B, 93(4). https://doi.org/10.1103/PhysRevB.93.045413
Dechaux, M., P. H. Tichit, C. Ciracì, J. Benedicto, R. Pollès, E. Centeno, D. R. Smith, and A. Moreau. “Influence of spatial dispersion in metals on the optical response of deeply subwavelength slit arrays.” Physical Review B 93, no. 4 (January 13, 2016). https://doi.org/10.1103/PhysRevB.93.045413.
Dechaux M, Tichit PH, Ciracì C, Benedicto J, Pollès R, Centeno E, et al. Influence of spatial dispersion in metals on the optical response of deeply subwavelength slit arrays. Physical Review B. 2016 Jan 13;93(4).
Dechaux, M., et al. “Influence of spatial dispersion in metals on the optical response of deeply subwavelength slit arrays.” Physical Review B, vol. 93, no. 4, Jan. 2016. Scopus, doi:10.1103/PhysRevB.93.045413.
Dechaux M, Tichit PH, Ciracì C, Benedicto J, Pollès R, Centeno E, Smith DR, Moreau A. Influence of spatial dispersion in metals on the optical response of deeply subwavelength slit arrays. Physical Review B. 2016 Jan 13;93(4).

Published In

Physical Review B

DOI

EISSN

2469-9969

ISSN

2469-9950

Publication Date

January 13, 2016

Volume

93

Issue

4

Related Subject Headings

  • 51 Physical sciences
  • 40 Engineering
  • 34 Chemical sciences