Mid-infrared tunable optical polarization converter composed of asymmetric graphene nanocrosses

• DOI: 10.1364/ol.38.001567
• Publication Date: 2013-04-29T21:05:11Z
• Authors: Hua Cheng; Shuqi Chen; Ping Yu; Jianxiong Li; Li Deng; Jianguo Tian
• Keywords: Elliptical polarization

We present a mid-IR highly tunable optical polarization converter composed of asymmetric graphene nanocrosses. It can convert linearly polarized light to circularly and elliptically or exhibit giant activity at different wavelengths. The transmitted wavelength states also be dynamically tuned by varying the Fermi energy graphene, without reoptimizing refabricating nanostructures. This offers further step in developing controllable converter.