Subwavelength hole array enhanced light transmission

Stefan Enoch; Evgueni K. Popov; Michel Neviere; Raymond Reinisch

doi:10.1117/12.451480

26 December 2001 Subwavelength hole array enhanced light transmission

Stefan Enoch, Evgueni K. Popov, Michel Neviere, Raymond Reinisch

Proceedings Volume 4438, Physics, Theory, and Applications of Periodic Structures in Optics; (2001) https://doi.org/10.1117/12.451480
Event: International Symposium on Optical Science and Technology, 2001, San Diego, CA, United States

Abstract

An electromagnetic analysis of a two-dimensional metallic grating is used to explain the extraordinary optical transmission of a metallic film pierced by a two-dimensional subwavelength hole array, observed three years ago. The analysis is based on the Fourier-modal method extended to crossed gratings, which reduces the diffraction problem to the search of eigenvalues and eigenvectors of a particular matrix. The computation of the eigenvalues allows finding a new channel for light transmission through the subwavelength holes, which differs from the transmission channel in the one dimensional case (lamellar or rectangular-rod grating). It is demonstrated that the enhanced transmission is due to the excitation of a surface plasmon on the lower metallic surface.

Citation Download Citation

Stefan Enoch, Evgueni K. Popov, Michel Neviere, and Raymond Reinisch "Subwavelength hole array enhanced light transmission", Proc. SPIE 4438, Physics, Theory, and Applications of Periodic Structures in Optics, (26 December 2001); https://doi.org/10.1117/12.451480

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