Controlling the polarization state of light with a dispersion-free metastructure

Shang Chi Jiang, Xiang Xiong, Yuan Sheng Hu, Yu Hui Hu, Guo Bin Ma, Ru Wen Peng, Cheng Sun, Mu Wang*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

286 Scopus citations


By combining the advantages of both a metallic metamaterial and a dielectric interlayer, we demonstrate the general mechanism to construct the dispersion-free metastructure, in which the intrinsic dispersion of the metallic structures is perfectly cancelled out by the thickness-dependent dispersion of the dielectric spacing layer. As examples to apply this concept, a broadband quarter-wave plate and a half-wave plate are demonstrated. By selecting the structural parameters, the polarization state of light can be freely tuned across a broad frequency range, and all of the polarization states on the Poincaré sphere can be realized dispersion free.

Original languageEnglish (US)
Article number021026
JournalPhysical Review X
Issue number2
StatePublished - 2014

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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