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Enhanced Transmission and Reflection of Femtosecond Pulses by a Single Slit

M. Mechler·O. Samek·S. V. Kukhlevsky
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Abstract

We show that a physical mechanism responsible for the enhanced transmission and reflection of femtosecond pulses by a single subwavelength nanoslit in a thick metallic film is the Fabry-Perot-like resonant excitation of stationary, quasistationary and nonstationary waves inside the slit, which leads to the field enhancement inside and around the slit. The mechanism is universal for any pulse-scatter system, which supports the stationary resonances. We point out that there is a pulse duration limit below which the slit does not support the intraslit resonance.

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M. Mechler, O. Samek, S. V. Kukhlevsky. 2006-10-03. Enhanced Transmission and Reflection of Femtosecond Pulses by a Single Slit. https://doi.org/10.1103/physrevlett.98.163901

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