Dr. Zhujun Shi Colloquium - in-person and VIA ZOOM

Dr. Zhujun Shi from Meta Platforms, Inc. will present a colloquium to the Department of Physics and Astronomy.

Title and Abstract

Nano-optics for spatial polarization transformation

Nano-optics offers a novel approach to manipulating light through engineered nanoscale light confinement. In this seminar, I will introduce a new type of nano-optical devices - polarization metasurfaces, where the optical anisotropy can be tailored spatially at a subwavelength scale. These devices offer unprecedented control over the polarization state of light, opening up new possibilities in classical and quantum optics. I will discuss several examples of polarization metasurface systems. The first example introduces a new class of polarization wavefront transformation that features the classical entanglement between polarization and spatial degrees of freedom of light. They exhibit nonconventional far-field interference behavior, and could enable new types of holograms and optical traps. In the second example, I will explore the application of polarization metasurfaces in display technologies. By integrating metasurfaces with microLED pixels, we demonstrate a new display architecture that can switch between 2D and 3D display modes. Finally, I will talk about potential future directions, such as spatial-temporal light control using dynamic polarization metasurfaces.

Join Zoom Meeting
https://uwaterloo.zoom.us/j/97057429470?pwd=SkE5Mmg1TXZ6RURvSmdLNC92cE9sdz09

Meeting ID: 970 5742 9470
Passcode: 053570