Broadband Terahertz Plasmonic Wave Retarders
Refereed conference paper presented and published in conference proceedings


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摘要We report ultra-broadband, easily tuned, and highly efficient metamaterial terahertz wave retarders that are able to convert linear polarization into circular and elliptical polarization states. The broadband nature arises from the combination of the plasmonic effect and the property of polarization conversion. The dielectric response of the metamaterial microstructure and the angular phase dispersion of the grating coupler allow tuning of the flat phase differences from zero to 110 degree within the range of a few terahertz while keeping the magnitudes of the two orthogonally transmitted waves equal. In particular, a high degree of circular polarization (>0.99) can be achieved between 1.78 and 4.88 THz for a specific dielectric value of spacer material and angle of incidence. Our study opens new opportunities for manipulating the broadband polarization responses of terahertz waves, and hence enables implementation of novel functional devices based on metamaterials for terahertz wave imaging and spectroscopy.
著者Chunrui Han, Edward Parrott, Emma Pickwell‐MacPherson
會議名稱41st International Conference on Infrared, Millimeter and Terahertz Waves
會議開始日25.09.2016
會議完結日30.09.2016
會議地點Copenhagen, Denmark - Bella Center
會議國家/地區丹麥
期刊名稱2016 41ST INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ)
會議論文集題名Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2016 41st International Conference on
出版作品名稱2016 41ST INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ)
出版年份2016
出版社IEEE
國際標準書號978-1-4673-8485-8
國際標準期刊號2162-2027
語言英式英語
Web of Science 學科類別Engineering, Electrical & Electronic;Physics, Applied;Engineering;Physics

上次更新時間 2021-17-06 於 00:43