MULTIMODAL METATEXTURE AND ACOUSTO-MECHANICALLY ACTIVE METASURFACE
Abstract
Metasurfaces are two-dimensional arrays of subwavelength sized meta-atoms that are designed to modify different characteristics of light such as its wavefront, polarization distribution, intensity, or spectrum. However, the current technologies to fabricate the large-area, nanometer-scale multimodal metasurface have certain issues which impact their widespread application, for example, increase in the complexity and variety of meta-atom structures, time- and cost-consuming nanomanufacturing. Traditional metasurfaces are unable to be tuned after being fabricated, which considerably limits the degree of freedom for light manipulation. Here, we propose to develop the next generation assembly method of metal-polymer composite based multimodal metatextures (e.g., spectropolarimetry), then hetero-integrated dielectric meta-system will be studied to remove the ohmic loss of metal in optical frequencies as well as to endure extreme environments in space. We also aim to realize the acousto-mechanically active metasurface to manipulate light by the mechanical deformation of meta-atoms under externally applied acoustic wave. We envision the acousto-mechanically active metasurface as a complementary platform in optical element and system design for various applications.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Apr 20, 2023
- Source ID
- FA23862214025
Entities
People
- Bongjoong Kim
Organizations
- Air Force Office of Scientific Research
- United States Air Force