Arbitrary Achromatic Polarization Control with Reconfigurable Metasurface Systems
Abstract
Dynamic control over the polarization state of light is foundational for many scientific and technological applications, yet it remains a challenge to dynamically tailor responses with arbitrary polarization bases over a broad bandwidth. Broadband metasurface systems that utilize microscale displacements between two metasurfaces to enable reconfigurable polarization responses within a predefined polarization basis are reported. The metasurface pairs form an interferometer, and the lateral displacements produce detour phase shifts within the interferometer beam paths that mediate polarization state tuning. It is shown how the metasurface systems can be designed using freeform topology optimization to enable tailorable elliptical birefringence responses over a large bandwidth and how cascaded metasurface systems can enable the mapping of input and output polarization states between any two points on the Poincare sphere. It is anticipated that these concepts will have utility in imaging, display, communications, and metrology applications in classical and quantum optical domains.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Apr 11, 2023
- Source ID
- 10.1002/lpor.202200926
Entities
People
- Evan W. Wang
- Jonathan A. Fan
- Scott Dhuey
- Shangâjie Yu
- Thaibao Phan
Organizations
- Air Force Office of Scientific Research
- David and Lucile Packard Foundation
- National Aeronautics and Space Administration
- National Science Foundation
- Stanford University
- United States Department of Energy