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Three-Dimensional Optical Transformer – Highly Efficient Nanofocusing Device

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Abstract

Using electron-beam-induced deposition and focused-ion-beam milling, we have fabricated and demonstrated a nanofocusing optical transformer with a 3-dimensionally tapered tip. At the tip, the light is confined to 13-by-80-nm area with intensity enhancement exceeding 1500.

© 2010 Optical Society of America

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