Measuring the near-field of extra-ordinary transmission through a periodic hole-array

The knowledge of the near-field of extra-ordinary transmission through hole-arrays is mostly theoretical; there is less experimental validation of the theory. We study the near-field properties by measuring fluorescent molecules that are immersed in a solution and their Brownian motion. The measurements are performed by filling the space above...

Method and apparatus for the formation of nanometer-scale electrodes, and such electrodes

A method for the formation of nanometer-scale electrodes, wherein strip of electrically conductive material, in particular metal, is provided with a longitudinal direction, a width direction and a thickness direction and then, with the aid of an electron beam, a groove is provided in a top surface of the strip, in the width direction of the...

Propulsion of ripples on glass by ion bombardment

A novel concept for a mid-field microscope

When light passes through a hole smaller than the wavelength of the light, the transmission is very low and the light is diffracted. This however changes if holes are arranged in a periodic array on metal. In that case the light couples to surface plasmons; this results in enhanced transmission, spectral selection and a small angular diffraction...

Plasmon-assisted two-slit transmission: Young's experiment revisited

Polarization tomography of metallic nanohole arrays

We report polarization tomography experiments on metallic nanohole arrays with square and hexagonal symmetry. As a main result we find that a fully polarized input beam is partly depolarized after transmission through a nanohole array. This loss of polarization coherence is found to be anisotropic; i.e., it depends on the polarization state of...

Toward the development of a Three-Dimensional Mid–Field Microscope

Recently, an extraordinary transmission of light through small holes (<200 nm) in a thin metallic film has been described. This phenomenon has been shown to be the result of the photon-plasmon interaction in thin films where a periodic structure (such as a set of holes) is embedded in the film. One of the extraordinary results is that the beam...

Experimental investigation of band structure modification in silicon nanocrystals

1/f noise in mono- and polycrystalline aluminum

Spectra of secondary electrons induced by channeled and nonchanneled ions in Si and Al

On Vortex Atoms and Vortons

On a differential equation and the Laplace-Stieltjes transform in the theory of linear positive operators

Fabrieksschema van schuimrubberfabricage

Document(en) uit de collectie Chemische Procestechnologie