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Lezec HJ, Dionne JA, Atwater HA. Negative refraction at visible frequencies. Science. 2007;316(5823):430-2doi: 10.1126/science.1139266.
Lezec, H. J., Dionne, J. A., & Atwater, H. A. (2007). Negative refraction at visible frequencies. Science (New York, N.Y.), 316(5823), 430-2. https://doi.org/10.1126/science.1139266
Lezec, Henri J, et al. "Negative refraction at visible frequencies." Science (New York, N.Y.) vol. 316,5823 (2007): 430-2. doi: https://doi.org/10.1126/science.1139266
Lezec HJ, Dionne JA, Atwater HA. Negative refraction at visible frequencies. Science. 2007 Apr 20;316(5823):430-2. doi: 10.1126/science.1139266. Epub 2007 Mar 22. PMID: 17379773.
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Science. 2007 Apr 20;316(5823):430-2. doi: 10.1126/science.1139266. Epub 2007 Mar 22.

Negative refraction at visible frequencies.

Science (New York, N.Y.)

Henri J Lezec, Jennifer A Dionne, Harry A Atwater

Affiliations

  1. Thomas J. Watson Laboratory of Applied Physics, California Institute of Technology, Pasadena, CA 91125, USA. [email protected]

PMID: 17379773 DOI: 10.1126/science.1139266

Abstract

Nanofabricated photonic materials offer opportunities for crafting the propagation and dispersion of light in matter. We demonstrate an experimental realization of a two-dimensional negative-index material in the blue-green region of the visible spectrum, substantiated by direct geometric visualization of negative refraction. Negative indices were achieved with the use of an ultrathin Au-Si3N4-Ag waveguide sustaining a surface plasmon polariton mode with antiparallel group and phase velocities. All-angle negative refraction was observed at the interface between this bimetal waveguide and a conventional Ag-Si3N4-Ag slot waveguide. The results may enable the development of practical negative-index optical designs in the visible regime.

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