Generation of vector beams with arbitrary spatial variation of phase and linear polarization using plasmonic metasurfaces

作者：Yu, Ping; Chen, Shuqi^*; Li, Jianxiong; Cheng, Hua; Li, Zhancheng; Liu, Wenwei; Xie, Boyang; Liu, Zhaocheng; Tian, Jianguo

来源：Optics Letters, 2015, 40(14): 3229-3232.

DOI：10.1364/OL.40.003229

• ORBITAL ANGULAR-MOMENTUM
• LIGHT-PROPAGATION
• DISCONTINUITIES
• METAMATERIALS
• REFRACTION
• FIELD

A novel method is proposed to generate vector beams with arbitrary spatial variation of phase and linear polarization at the nanoscale using compact plasmonic metasurfaces with rectangular nanoapertures. The physical mechanism underlying the simultaneous control of light polarization and phase is explained. Vector beams with different spiral phase-fronts are obtained by manipulating the local orientation and geometric parameters of the metasurfaces. In addition, radially and azimuthally polarized vector beams and double-mode vector beams are achieved through completely compensating for the Berry phase, which provides additional degrees of freedom for beam manipulation.

• 出版日期2015-7-15
• 单位南开大学