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A double‐lined metasurface for plasmonic complex‐field generation
Author(s) -
Song EuiYoung,
Lee SeungYeol,
Hong Jongwoo,
Lee Kyookeun,
Lee Yohan,
Lee GunYeal,
Kim Hwi,
Lee Byoungho
Publication year - 2016
Publication title -
laser and photonics reviews
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.778
H-Index - 116
eISSN - 1863-8899
pISSN - 1863-8880
DOI - 10.1002/lpor.201500245
Subject(s) - plasmon , caustic (mathematics) , surface plasmon polariton , optics , field (mathematics) , surface plasmon , plasmonic lens , amplitude , physics , phase (matter) , optoelectronics , mathematics , quantum mechanics , pure mathematics , mathematical physics
Since the surface plasmon polariton (SPP) has received a great deal of attention because of its capability of guiding light within the subwavelength scale, finding methods for arbitrary SPP field generation has been a significant issue in the area of integrated optics. To achieve such a goal, it will be necessary to generate a plasmonic complex field. In this paper, we propose a novel method for generating a plasmonic complex field propagating with arbitrary curvatures by using double‐lined distributed nanoslits. As a unit cell, two facing nanoslits are used for tuning both the amplitude and the phase of excited SPPs as a function of their tilted angles. For verification of the proposed design rule, the authors experimentally demonstrate some plasmonic caustic curves and Airy plasmons.