SiO₂ Nanoparticles-Acrylate Formulations for Core and Cladding in Planar Optical Waveguides

Area of Science:

• Materials Science
• Optoelectronics
• Polymer Nanocomposites

Background:

• Low-refractive index polymers are crucial for fabricating planar optical waveguides.
• Improving optical properties and thermal stability of these polymers is an ongoing challenge.
• Nanoparticle integration offers a route to tailor polymer characteristics.

Purpose of the Study:

• To investigate the impact of silicon dioxide (SiO2) nanoparticles on acrylate polymer optical properties.
• To assess the suitability of these nanocomposites for low-loss optical waveguides at telecommunication wavelengths.
• To explore potential applications in optical microchips.

Main Methods:

• Fabrication of acrylate-SiO2 nanocomposite materials.
• Characterization of optical properties, including refractive index and thermo-optic coefficient.
• Evaluation of thermal properties, such as glass transition temperature.
• Assessment of optical propagation losses at 1550 nm.

Main Results:

• Demonstrated a decrease in refractive index and thermo-optic coefficient in the nanocomposite materials.
• Observed an increase in the glass transition temperature for specific formulations.
• Confirmed the potential for low optical propagation losses at 1550 nm.

Conclusions:

• Acrylate-SiO2 nanocomposites offer a promising approach to enhance optical waveguide materials.
• These materials exhibit desirable optical and thermal properties for photonic applications.
• The developed nanomaterials are suitable for fabricating waveguiding layers in optical microchips.