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Conferences > CLEO_QELS > 2015 > FW4E > FW4E.7

Creating Surface Plasmon Orbital Angular Momentum in a Gold Metasurface

Ching-Fu Chen, Chen-Ta Ku, Ming-Yang Pan, Pei-Kuen Wei, and Chen-Bin Huang

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Abstract

Nanocavities inscribed in a gold thin film is optimized and arranged to form a metasurface. We demonstrate both numerically and experimentally that surface plasmon vortex carrying orbital angular momentum can be generated under linearly-polarized optical excitation.

© 2015 Optical Society of America

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