Wednesday, May 2025

09:20 AM - 09:40 AM

Room: 220C

Session: AR Waveguide I

Novel Polarization Conversion Effect in Polarization Volume Gratings for Waveguide-Based AR Displays

Student

• Yuqiang Ding

  University of Central Florida

Description:

To circumvent the low efficiency of waveguide-based AR displays, we discovered and analyzed a novel polarization conversion effect in polarization volume gratings. Leveraging from this effect, we break the theoretical in-coupling efficiency limit of conventional couplers. In the experiment, we achieved a 2x higher optical efficiency and 2.3x better eyebox uniformity.