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Super-resolution imaging by high-index microspheres embedded in an elastomer layer

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Abstract

We demonstrated super-resolution imaging using microsphere-embedded cover slides. We performed imaging, with resolution improvement by a factor of 2-3, by using barium titanate glass microspheres with diameters ~30–150 µm and refractive index ~1.9–2.1 embedded in a layer of polydimethylsiloxane elastomer placed over the specimen.

© 2015 Optical Society of America

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