Anomalous Surface Wave Launching by Handedness Phase Control

Xueqian Zhang; Yuehong Xu; Weisheng Yue; Zhen Tian; Jianqiang Gu; Yanfeng Li; Ranjan Singh; Shuang Zhang; Jiaguang Han; Weili Zhang

doi:10.1002/adma.201502008

Anomalous Surface Wave Launching by Handedness Phase Control

Adv Mater. 2015 Nov 25;27(44):7123-9. doi: 10.1002/adma.201502008. Epub 2015 Oct 9.

Authors

Xueqian Zhang^{1

2}, Yuehong Xu^{1

2}, Weisheng Yue³, Zhen Tian^{1

2}, Jianqiang Gu^{1

2}, Yanfeng Li^{1

2}, Ranjan Singh⁴, Shuang Zhang⁵, Jiaguang Han^{1

2}, Weili Zhang^{1

2

6}

Affiliations

¹ Center for Terahertz Waves and College of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin, 300072, P. R. China.
² The Key Laboratory of Optoelectronics Information and Technology (Ministry of Education), Tianjin University, Tianjin, 300072, P. R. China.
³ Advanced Nanofabrication and Imaging Core Lab, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia.
⁴ Centre for Disruptive Photonic Technologies, Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore.
⁵ School of Physics and Astronomy, University of Birmingham, Birmingham, B15 2TT, UK.
⁶ School of Electrical and Computer Engineering, Oklahoma State University, Stillwater, OK, 74078, USA.

PMID: 26449732
DOI: 10.1002/adma.201502008

Abstract

Anomalous launch of a surface wave with different handedness phase control is achieved in a terahertz metasurface based on phase discontinuities. The polarity of the phase profile of the surface waves is found to be strongly correlated to the polarization handedness, promising polarization-controllable wavefront shaping, polarization sensing, and environmental refractive-index sensing.

Keywords: near-field microscopy; phase discontinuities; surface waves; terahertz metasurfaces.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Electromagnetic Phenomena*
Metals

Substances

Metals