Multifunctional Dielectric Metasurface for Coding/Decoding and Sensing of Light
Abstract
Photonic metasurfaces are metamaterials with a reduced dimensionality and are comprised of engineered subwavelength-scale meta-atoms. These flat optical elements facilitate a wide variety of custom-tailored electromagnetic responses. They have gained notable attention for their ability to (in certain cases) replace bulky optical elements, such as lenses, prisms, etc., and to allow for dynamic functions, such as optical beam steering. In this program, we aimed to design metasurfaces for coding/decoding and sensing of the fundamental properties of light (frequency, polarization, direction, intensity,..). Metasurfaces have been particularly useful for this purpose as their diffraction behavior is very sensitively dependent on the properties of light waves. For example, they have successfully been used to perform spectropolarimetry by decomposing plane waves into a set of separated beams that each carry information on the incident angle, spectral content and polarization state. However, such metasurfaces need to be used in conjunction with a separate image sensor to create a complete spectro-polarimetric system.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 16, 2023
- Accession Number
- AD1230067
Entities
People
- Mark L. Brongersma
Organizations
- Stanford University