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Plasmonic Light Beaming Manipulation and its Detection Using Holographic Microscopy

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6 Author(s)
Yongjun Lim ; National Creative Research Center for Active Plasmonics Application Systems, Inter-University Semiconductor Research Center and School of Electrical Engineering, Seoul National University, Seoul, Korea ; Joonku Hahn ; Seyoon Kim ; Junghyun Park
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Plasmonic off axis beaming and focusing of light by the use of asymmetric or non-periodic dielectric gratings around a metallic slit are experimentally demonstrated. The far-field probing was done by holographic microscopy. While the conventional near-field microscopes can probe only near-fields, our four-step phase-shift interferometer provides an efficient way of probing and reconstructing light paths coming out from the plasmonic devices. We hope our experimental work contributes to the practical applications of plasmonics such as optical interconnection and optical data storage.

Published in:

IEEE Journal of Quantum Electronics  (Volume:46 ,  Issue: 3 )