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Conferences > IQEC > 2009 > JTuD > JTuD125

Effective in plane launching and focusing surface plasmons by a plasmonic lens

Jiayuan Wang, Jiasen Zhang, and Qihuang Gong

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Abstract

We implement in plane launching and focusing surface plasmons by fabricating Fresnel zone-plate like grating on a thin gold film. A subwavelength focal spot, with transverse FWHM=712nm, is observed at 830nm vacuum wavelength.

© 2009 Optical Society of America

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