Scaling law of plasmonic near-field characteristic toward the skin-depth regime. (IMAGE)

Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS

Scaling law of plasmonic near-field characteristic toward the skin-depth regime.

Caption

a, Schematics of the bow-tie antenna-assisted device. b, The cross-section view of the simulated electric field intensity normalized to incident one marks the power-gain around the nanochannel at 0.3 THz electromagnetic waves. c, The scaling of electric field enhancement derived from FDTD method versus channel length and incident frequency. d, Asymmetric ultrashort channel was fabricated by tilt deposition. e, The near-field images are taken around the slit area using broadband illumination. f, Stereograph of the near-field signal.

Credit

by Lin Wang, Li Han, Wanlong Guo, Libo Zhang, Chenyu Yao, Zhiqingzi Chen, Yulu Chen, Cheng Guo, Kaixuan Zhang, Chia-Nung Kuo, Chin Shan Lue, Antonio Politano, Huaizhong Xing, Mengjie Jiang, Xianbin Yu, Xiaoshuang Chen, and Wei Lu

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CC BY

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