Freely tunable broadband polarization rotator for terahertz waves.
basic_science · Level V
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- Record sourced from PubMed, PMID 25545177.
- Also identified by DOI 10.1002/adma.201404981.
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Abstract
A freely tunable polarization rotator for broadband terahertz waves is demonstrated using a three-rotating-layer metallic grating structure, which can conveniently rotate the polarization of a linearly polarized terahertz wave to any desired direction with nearly perfect conversion efficiency. This low-cost, high-efficiency, and freely tunable device has potential applications as material analysis, wireless communication, and THz imaging.