Spin-Controlled Multiple Pencil Beams and Vortex Beams with Different   Polarizations Generated by Pancharatnam-Berry Coding Metasurfaces

doi:10.1021/acsami.7b12468

CORC > 北京大学 > 信息科学技术学院

	Spin-Controlled Multiple Pencil Beams and Vortex Beams with Different Polarizations Generated by Pancharatnam-Berry Coding Metasurfaces
	Zhang, Lei ; Liu, Shuo ; Li, Lianlin ; Cui, Tie Jun
刊名	ACS APPLIED MATERIALS & INTERFACES
	2017
关键词	coding metasurface Pancharatnam-Berry phase anisotropy vortex beam circularly polarized waves multiple beams PHASE DISCONTINUITIES LIGHT-PROPAGATION TERAHERTZ WAVES EFFICIENCY METAMATERIALS REFLECTION SCATTERING REFRACTION DIFFUSION
DOI	10.1021/acsami.7b12468
英文摘要	We propose to design coding metasurfaces based on the Pancharatnam-Berry (PB) phase. The proposed PB coding metasurface could control circularly polarized components of incident waves, by encoding geometric phase into the orientation angle of coding particles to generate 1-bit and multibit phase:responses. We perform digital convolution operations on scattering patterns of the 13B coding metasurface to reach flexible controls of the circularly polarized waves, forming spin-controlled multiple beams with different polarizations in free space, such as pencil beams and vortex beams carrying orbital angular momentum. Both numerical and experimental results demonstrate the excellent performance Of the PB coding metasurface, which opens a pathway to novel types of multibeam generations and provides an effective way to expand the beam coverage for wireless communication applications.; National Natural Science Foundation of China [61631007, 61571117, 61302018, 61401089, 61401091, 61501112, 61501117]; 111 Project [111-2-05]; SCI(E); ARTICLE; 41; 36447-36455; 9
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/484636]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Zhang, Lei,Liu, Shuo,Li, Lianlin,et al. Spin-Controlled Multiple Pencil Beams and Vortex Beams with Different Polarizations Generated by Pancharatnam-Berry Coding Metasurfaces[J]. ACS APPLIED MATERIALS & INTERFACES,2017.
APA	Zhang, Lei,Liu, Shuo,Li, Lianlin,&Cui, Tie Jun.(2017).Spin-Controlled Multiple Pencil Beams and Vortex Beams with Different Polarizations Generated by Pancharatnam-Berry Coding Metasurfaces.ACS APPLIED MATERIALS & INTERFACES.
MLA	Zhang, Lei,et al."Spin-Controlled Multiple Pencil Beams and Vortex Beams with Different Polarizations Generated by Pancharatnam-Berry Coding Metasurfaces".ACS APPLIED MATERIALS & INTERFACES (2017).