Subwavelength Optics: Theory and Technology

PLASMONIC STRUCTURES FOR IMAGING AND SUPERFOCUSING

Author(s): Yongqi Fu

Pp: 101-133 (33)

DOI: 10.2174/978160805050510901010101

* (Excluding Mailing and Handling)

Abstract

Superlens for imaging was introduced firstly. Two types of the superlenses were presented: negative refraction-based perfect lens, and metamaterials-based silver superlens. After that, several plasomonic structures such as the subwavelength metallic structures with depth tuning and width tuning, variant periods metallic structures, and funnel-shaped array for beaming and superfocusing were illustrated. A recently developed light source, radial polarization illumination was cited as a new concept of polarization for illumination. Then the radial polarization illumination-based plasmonic structures for superlensing were described. Finally, a nanoplasmonic waveguide for nanofousing was described.

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