Waveguide properties of single subwavelength holes demonstrated with radially and azimuthally polarized light

Details Waveguide properties of single subwavelength holes demonstrated with radially and azimuthally polarized light Waveguide properties of single subwavelength holes demonstrated with radially and azimuthally polarized light

2007-08-10

arxiv.org/abs/0708.1473v1

Physics

Optics

Scientific paper

We investigate the transmission of focused beams through single subwavelength holes in a silver film. We use radially and azimuthally polarized light, respectively, to excite higher order waveguide modes as well as to match the radial symmetry of the aperture geometry. Remarkably, the transmission properties can be described by a classical waveguide model even for thicknesses of the silver film as thin as a quarter of a wavelength.

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