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Holographic waveguides in photopolymers
Optics Express
|January 31, 2019
Summary
This study evaluates three photopolymer materials for fabricating holographic waveguides. Polyvinyl alcohol acrylamide (PVA/AA), nanoparticle-thiol-ene (NPC), and PDLC show varying performance, highlighting material and spatial resolution importance.
Area of Science:
- Optics and Photonics
- Materials Science
- Holography
Background:
- Holographic optical elements are crucial for advanced applications like photovoltaic devices and see-through displays.
- Waveguides are key components for these holographic applications.
- Photopolymers are promising materials for fabricating waveguides due to their competitive characteristics.
Purpose of the Study:
- To evaluate the performance of three distinct photopolymer families for 633nm waveguide fabrication.
- To investigate the critical role of material properties, specifically spatial resolution, in waveguide performance.
Main Methods:
- Fabrication of 633nm waveguides using three photopolymer types: polyvinyl alcohol acrylamide (PVA/AA), nanoparticle-thiol-ene (NPC), and penta/hexa-acrylate based polymer with dispersed nematic liquid crystal molecules (PDLC).
- Performance evaluation of the fabricated waveguides.
- Analysis of the impact of material properties and spatial resolution.
Main Results:
- Performance differences were observed among the PVA/AA, NPC, and PDLC photopolymer materials in waveguide fabrication.
- The study identified spatial resolution as a critical factor influencing waveguide performance for these holographic applications.
Conclusions:
- The choice of photopolymer material significantly impacts holographic waveguide performance.
- Optimizing material properties, particularly spatial resolution, is essential for successful waveguide fabrication in holographic optical elements.
