Enhanced Transmission of Light and Matter through Nanoapertures without Assistance of Surface Waves

Details Enhanced Transmission of Light and Matter through Nanoapertures without Assistance of Surface Waves Enhanced Transmission of Light and Matter through Nanoapertures without Assistance of Surface Waves

2006-02-28

arxiv.org/abs/physics/0602190v2

Physics

Optics

Submitted to PRL; corrected typos

Scientific paper

Subwavelength aperture arrays in thin metal films enable enhanced transmission of light and matter waves [for example, see T.W. Ebbesen et al., Nature (London) 391, 667 (1998) and E. Moreno et al., Phys. Rev. Lett. 95, 170406 (2005)]. The phenomenon relies on resonant excitation of the surface electron or matter waves. We show another mechanism that provides a great transmission enhancement not by coupling to the surface waves but by the interference of diffracted evanescent waves in the far-field zone. Verification of the mechanism is presented by comparison with recently published data.

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