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30 April 1998 Near-field optical tools to read, write, and copy information at the 100- to 10-nm scale
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Contact imaging by energy transfer was the first application of the optical near-field for imaging beyond the diffraction limit. It is a method by which surface nanostructures can be copied onto a monomolecular layer of a dye. Near field microscopy using tapered metal coated fibers with an aperture at their tip as a submicron source of light can be used as a tool to write structures at a resolution of 80 nm. These near-field optical methods are well suited to create-- by local photochemical reactions--patterns of locally differing chemical composition and reactivity. Such structures serve as matrices for a site selective binding of colloidal particles. Unlike other methods, light microscopy and near-field microscopy have a sensitivity to detect photochemical processes at the single molecular level. Near- field microscopy is not limited to a resolution of 50 nm. As recently shown, the resolution can be extended to the 1 - 10 nm range using the tetrahedral tip as a probe. We expect, that a convergence of these recent developments should result in a very powerful near-field optical toolbox to read, write and copy information at the 10 nm scale.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
U. C. Fischer, A. P. Naber, T. Dziomba, J. Koglin, W. Goehde, O. Panzer, and Harald Fuchs "Near-field optical tools to read, write, and copy information at the 100- to 10-nm scale", Proc. SPIE 3272, Laser Techniques for Surface Science III, (30 April 1998);

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