Large-Scale Multiplexed Azopolymer Gratings with Engineered Diffraction Behavior
Abstract
The diffraction of polychromatic light from periodic superficial structures is often responsible for the structural colors observed in Nature. Similarly, engineered microtextures fabricated on metallic or dielectric surfaces can be used to design diffracted optical patterns with desired shapes and colors. To this aim, advanced diffraction gratings with exceptional design and functionality are continuously proposed, and new fabrication methods follow to stay abreast with the improving design capabilities. Multiplexed surface reliefs, acting as complex gratings with tunable diffraction behavior, can be readily produced on films of azobenzene containing materials by exposing the surface to controlled sequences of holographic interference patterns. This work fully investigates, both theoretically and experimentally, the use of light‐induced surface relief on azopolymers for the realization of large‐scale multiplexed gratings with optimized diffraction performances. The reconfigurable diffraction gratings able to diffract polychromatic light in the same direction with controllable relative color intensities by tuning exposure parameters in a switchable two‐beam interference setup are designed and fabricated. The results can be generalized to more complex diffractive devices, usable in emerging display application areas.
Related
- Light-surface coupling in deep azopolymer surface relief diffraction gratings
- Accurate Morphology-Related Diffraction Behavior of Light-Induced Surface Relief Gratings on Azopolymers
- Quantum photonic treatment of nano-polarization in diffraction gratings
- Multilevel azopolymer patterning from digital holographic lithography
- Molding three-dimensional azopolymer microstructures with holographically structured light
BibTeX
@article{oscurato2026largescale,
title = {{Large-Scale Multiplexed Azopolymer Gratings with Engineered Diffraction Behavior}},
author = {Stefano L. Oscurato and Francesco Reda and Marcella Salvatore and Fabio Borbone and Pasqualino Maddalena and Antonio Ambrosio},
journal = {Advanced Materials Interfaces},
year = {2026},
month = oct,
doi = {10.1002/admi.202101375},
url = {https://hal.science/hal-05789726v1},
note = {CC BY},
}
RIS
TY - JOUR
TI - Large-Scale Multiplexed Azopolymer Gratings with Engineered Diffraction Behavior
AU - Stefano L. Oscurato
AU - Francesco Reda
AU - Marcella Salvatore
AU - Fabio Borbone
AU - Pasqualino Maddalena
AU - Antonio Ambrosio
PY - 2026
DA - 2026/10/09
JO - Advanced Materials Interfaces
DO - 10.1002/admi.202101375
UR - https://hal.science/hal-05789726v1
AB - The diffraction of polychromatic light from periodic superficial structures is often responsible for the structural colors observed in Nature. Similarly, engineered microtextures fabricated on metallic or dielectric surfaces can be used to design diffracted optical patterns with desired shapes and colors. To this aim, advanced diffraction gratings with exceptional design and functionality are continuously proposed, and new fabrication methods follow to stay abreast with the improving design capabilities. Multiplexed surface reliefs, acting as complex gratings with tunable diffraction behavior, can be readily produced on films of azobenzene containing materials by exposing the surface to controlled sequences of holographic interference patterns. This work fully investigates, both theoretically and experimentally, the use of light‐induced surface relief on azopolymers for the realization of large‐scale multiplexed gratings with optimized diffraction performances. The reconfigurable diffraction gratings able to diffract polychromatic light in the same direction with controllable relative color intensities by tuning exposure parameters in a switchable two‐beam interference setup are designed and fabricated. The results can be generalized to more complex diffractive devices, usable in emerging display application areas.
SN - 2196-7350
ER -