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Article Dans Une Revue Physical Review Letters Année : 2004

Strong influence of hole shape on extraordinary transmission through periodic arrays sub-wavelength holes

Résumé

We show that extraordinary light transmission of periodic subwavelength hole arrays, generally attributed to surface-plasmon resonances, is strongly influenced by the hole shape. Both experiments and calculations, based on a Fourier modal method, demonstrate that a shape change from circular to rectangular increases the normalized transmission by an order of magnitude while the hole area decreases. Moreover, the spectra exhibit large redshifts (2500 cm1). A comparison with the transmission of isolated holes shows that shape resonances of the rectangular holes play a dominant role.
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hal-00082855 , version 1 (23-08-2022)

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K. J. Klein Koerkamp, Stefan Enoch, F. B. Segerink, N. F. van Hulst, L. Kuipers. Strong influence of hole shape on extraordinary transmission through periodic arrays sub-wavelength holes. Physical Review Letters, 2004, 92 (18), pp.183901. ⟨10.1103/PhysRevLett.92.183901⟩. ⟨hal-00082855⟩
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