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When it comes to making sophisticated 3D nanostructures to enhance light-matter interactions, traditional fabrication routes become problematic. We will demonstrate new routes to confined electronic and confined photonic structures on the 100 nm length-scale and nm-scale and reveal some of their new properties, as well as showing the prospects for metamaterials with novel nanophotonic properties.
We report in this work the fabrication and optical characterization of micromirrors with inversed pyramidal shape (pits). The pyramids are etched on silicon using an anisotropic etchant and then gold coated to form a mirror.
Our conveniently-fabricated spherical-reflector optical cavities with dimensions below 10 microns give localised tunable regions of greatly-enhanced light intensity suitable for applications in atom optics, microlasers, surface-enhanced single molecule detection, and many other research areas
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