Generation of terahertz vortices by using metasurface with polarization dependent slits

摘要：

　　We design a metasurface with circular subwavelength slits to generate THz orbital angular momentum beam.The mode purity can reach 0.92 and the polarization extinction ratio keep above 20 dB over the most bandwidth ranging from 0.3 to 3THz.

作者: Hailong Zhou Jianji Dong Xinliang Zhang

作者单位: Wuhan National Laboratory for Optoelectronics,Huazhong University of Science and Technology,Wuhan,430074,China

会议类型: 国际会议

会议名称: 2014 Asia Communications and Photonics Conference(ACP2014)(2014亚洲通信与光子学大会)

会议地点: 上海

会议语种:英文

页码: 1-3

在线出版日期: 2014-11-11（万方平台首次上网日期，不代表论文的发表时间）