Experimental Mechanics at the Nanometric Level |
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Authors: | C A Sciammarella |
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Affiliation: | Dipartimento di Ingegneria Meccanica e Gestionale, Politecnico di Bari, Viale Japigia 182, 70126, Bari, Italy |
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Abstract: | Abstract: This article describes research carried out in the field of optical super-resolution. The main goal of this study was to go beyond the Rayleigh limit in conventional optics and observe phenomena at the nano-range, because in certain circumstances methods such as X-ray and electron microscopy cannot be applied because of their influence on the observed specimens. In summary, the presence of a small polystyrene sphere on the optical field of a conventional optical microscope seems to have converted the microscope into a device capable of functioning beyond the classical limit of resolution. This means that the near-field generated by evanescent illumination can be sensed by a microscope. Detection of particles in the range of a few tens of nanometres was achieved. |
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Keywords: | nano-crystal observation nano-holograms nano-optics nanometric measurements super-resolution |
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