POS5-0834
N-Benzylideneaniline-Derived Transparent Photoaddressable Polymers for AR Holographic Optics
When and Where
Nov 30, -0001
00:00 - 00:00
Presenter(s)
Mungeun Kim (Korea University)
Co-Author(s)
Abstract
N-Benzylideneaniline (NBA)-based photo-addressable copolymers were developed as visible-transparent holographic materials for optical Fourier volumes (OFVs) in waveguide-type augmented reality (AR) displays. Unlike conventional azobenzene-containing materials, which strongly absorb in the 400–500 nm region, the NBA-derived copolymer films maintained high visible-range transparency while enabling polarization-selective photoisomerization under 405 nm polarization interference patterning. The effects of NBA content and film thickness on grating formation were investigated using UV–Vis spectroscopy, polarized optical microscopy, real-time diffraction efficiency measurements, and Bragg diffraction analysis. Optimized films formed volume holographic gratings with clear polarization-dependent optical responses. Thicker films showed enhanced angular selectivity and effective RGB diffraction behavior, demonstrating the potential of NBA-derived polymers as transparent holographic materials for AR optical systems.
