Hybrid Au nanodisk–nanohole photonic crystals fabricated by laser interference lithography for large-scale, reproducible-performance, low-power and fast-sensing SERS platforms

Key Points

• The goal is to develop a scalable method for creating high-performance SERS platforms using hybrid gold nanostructures.
• Fabrication using single-beam laser interference lithography
• Production of hybrid gold nanodisk–nanohole arrays
• Focus on reproducibility on large surface areas (greater than 2 cm²)
• Achieved high performance in SERS applications
• Demonstrated reproducibility across large scales
• Showed potential for low-power and fast sensing capabilities