1：Experimental Design and Method Selection:

The study proposes a novel method utilizing a combination of three PLs to detect complete SoP of light. A double-ring arrayed nanocrosses-based plasmonic lens (DRAN-PL) is proposed to extract the phase difference between the two basic left-circularly polarized (LCP) and right-circularly polarized (RCP) components of an incident light. Two Archimedes-spiral arrayed nanoslits-based plasmonic lenses (ASAN-PLs) with reverse rotating direction are introduced to focus only the LCP or RCP components of an incident light.

2：Sample Selection and Data Sources:

The study uses numerical simulations to validate the theoretical analysis of the proposed PLs.

3：List of Experimental Equipment and Materials:

The proposed DRAN-PL structure consists of double-ring distributed nanocrosses that are etched in 200 nm thick gold film on silica substrate. Each nanocross can be regarded as a combination of two orthogonal rectangular nanoslits with a 160 nm length and a 40 nm width.

4：Experimental Procedures and Operational Workflow:

Three-dimensional finite-difference time-domain (FDTD) simulations using the Lumerical FDTD solution-based commercial software package are conducted.

5：Data Analysis Methods:

The focusing properties of the three PLs are investigated and demonstrated both theoretically and numerically.