Plasmonic surface-wave splitter

Qiaoqiang Gan, Baoshan Guo, Guofeng Song, Lianghui Chen, Zhan Fu, Yujie J. Ding, Filbert J. Bartoli

Research output: Contribution to journalArticlepeer-review

73 Scopus citations


The authors present an analysis of a plasmonic surface-wave splitter, simulated using a two-dimensional finite-difference time-domain technique. A single subwavelength slit is employed as a high-intensity nanoscale excitation source for plasmonic surface waves, resulting in a miniaturized light-surface plasmon coupler. With different surface structures located on the two sides of the slit, the device is able to confine and guide light waves of different wavelengths in opposite directions. Within the 15 μm simulation region, it is found that the intensity of the guided light at the interface is roughly two to eight times the peak intensity of the incident light, and the propagation length can reach approximately 42 and 16 μm and at the wavelengths of 0.63 and 1.33 μm, respectively. © 2007 American Institute of Physics.
Original languageEnglish (US)
JournalApplied Physics Letters
Issue number16
StatePublished - Apr 30 2007
Externally publishedYes

Bibliographical note

Generated from Scopus record by KAUST IRTS on 2022-09-13

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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