What the study reports
The design combines polarization multiplexing with axial focusing at two prescribed planes. Rotating the nanocolumns changes input–output polarization combinations. The abstract reports twelve switchable polarization–spatial display channels across the two focal planes. [1]
What this does not establish
This is a numerical investigation, not a demonstrated fabricated display. The subscription main text was not reviewed. Channel count alone does not establish independent-channel efficiency, low crosstalk, switching speed or cryptographic security.
Our engineering reading
In our interpretation, using polarization and depth together is a compact channel-addressing strategy. Practical value requires fabrication tolerance, calibrated channel separation and an experimentally supported switching method.
Editorial interpretation; not an additional measured result.Numerical investigation of polarization-dependent multi-channel holographic imaging based on a dual-focal-plane metasurface
Optical Review · 17 October 2026
DOI: 10.1007/s10043-026-01089-9- Publisher article and paper-specific author affiliations PRIMARY SOURCE · publisher · checked 20 October 2026
- Crossref bibliographic metadata · metadata · checked 20 October 2026
Scientific coverage: Publisher abstract, version-of-record chronology and complete ordered author-affiliation metadata reviewed; subscription main text not reviewed.. Source check: 20 October 2026.
Metadata enrichment does not imply that the full scientific methods were reviewed.