Metasurface-based arbitrary polarization filtering element design method and filtering element
By constructing a set of polarization state equations and a mapping method for metasurface birefringent microstructures, the problem of inflexible polarization state modulation in existing technologies is solved, achieving efficient and compact arbitrary polarization conversion and filtering, and improving the flexibility and applicability of polarization control.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HANGZHOU NAJING TECHNOLOGY CO LTD
- Filing Date
- 2026-06-12
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies cannot effectively modulate the polarization state of incident light arbitrarily, resulting in bulky and inflexible systems that cannot adapt to complex polarization generation requirements.
By constructing a design method for arbitrary polarization filtering elements based on metasurfaces, the target polarization state and the incident polarization state are received, a set of polarization state equations for a birefringent microstructure is constructed, the microstructure parameters are analyzed, a structure-phase delay mapping is constructed, and the geometric parameters of the microstructure array are obtained by matching the mapping, thereby realizing arbitrary polarization conversion and filtering of a single-layer metasurface.
It achieves arbitrary polarization conversion and filtering with smaller size and greater flexibility, reduces dependence on bulk optical elements, and improves the flexibility and applicability of polarization control.
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Abstract
Citation Information
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