毫米波轨道角动量涡旋的三维测量。

Three-dimensional measurements of a millimeter wave orbital angular momentum vortex.

出版信息

Opt Lett. 2014 Feb 1;39(3):626-9. doi: 10.1364/OL.39.000626.

DOI:10.1364/OL.39.000626

Abstract

Initial three-dimensional phase and intensity measurements of a 100 GHz l=±1 orbital angular momentum (OAM) vortex are presented. The vortex was generated by illuminating a polypropylene spiral phase plate. Measurements were taken with a three-dimensional field scanner operating in the W-band (75-100 GHz). Early analysis shows splitting of the OAM phase dislocation at the vortex center, resulting in a complex inner vortex intensity pattern.

摘要

首次对 100GHz l=±1 轨道角动量（OAM）涡旋的三维相位和强度进行了测量。该涡旋通过照射聚丙烯螺旋相位板产生。测量是使用工作在 W 波段（75-100GHz）的三维场扫描仪进行的。初步分析表明，在涡旋中心 OAM 位错发生分裂，导致内部涡旋强度模式复杂。