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Proceedings Paper

Imaging performances of the metallic superlens
Author(s): Guillaume Tremblay; Yunlong Sheng
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Paper Abstract

The imaging properties of the single-layer metallic superlens are studied systematically. We computed the impulse response and the transfer function of the lens which are critical for understanding the imaging performance of this superlens and for possible improvements in the future. Furthermore, we relate the single layer superlens structure to the well known surface plasmon polariton (SPP) waveguide, and find out that the metal slab superlens is a particular type of SPP waveguide, where the field distribution is mainly determined by the long- and short-range modes. We show that the excitation of the long-range mode causes large sidelobes in the impulse response. We propose to improve the imaging performances of the superlens by designing a structure for which the long-range mode is cutoff.

Paper Details

Date Published: 26 January 2009
PDF: 10 pages
Proc. SPIE 7156, 2008 International Conference on Optical Instruments and Technology: Optical Systems and Optoelectronic Instruments, 715602 (26 January 2009); doi: 10.1117/12.812053
Show Author Affiliations
Guillaume Tremblay, COPL, Univ. Laval (Canada)
Yunlong Sheng, COPL, Univ. Laval (Canada)


Published in SPIE Proceedings Vol. 7156:
2008 International Conference on Optical Instruments and Technology: Optical Systems and Optoelectronic Instruments
Yunlong Sheng; Yongtian Wang; Lijiang Zeng, Editor(s)

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