Artificial birefringent metallic planar structures for terahertz wave polarization manipulation

Lei Wang, Suhua Jiang, Haifeng Hu, Haomin Song, Wei Zeng, Qiaoqiang Gan

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


We propose an artificial birefringent terahertz (THz) device constructed by subwavelength L-shaped hole arrays on a single metallic layer. This structure is able to work as a polarizer when the incident frequency is between the cut-off frequencies of two eigenmodes. When the incident wave is beyond cut-off frequencies of these two modes, it can be designed as an efficient half- or quarter-wave plate with extraordinary transmission properties. A big effective index difference from 0.254 to 0.768 is obtained using a subwavelength-thick planar structure, which can reduce the thickness of the device to one tenth of conventional quartz birefringent crystals for THz waves. © 2014 Optical Society of America.
Original languageEnglish (US)
Pages (from-to)311-314
Number of pages4
JournalOptics Letters
Issue number2
StatePublished - Jan 15 2014
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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