Enhanced Transmission and Reflection of Femtosecond Pulses by a Single Slit

Details Enhanced Transmission and Reflection of Femtosecond Pulses by a Single Slit Enhanced Transmission and Reflection of Femtosecond Pulses by a Single Slit

2006-10-03

arxiv.org/abs/physics/0610019v1

Physics

Optics

4 pages, 3 figures

Scientific paper

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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