Finite Difference Time Domain Modeling of Sub-Wavelength Structured Anti-Reflective Coatings
关键词:
Anti-reflective, FDTD, modeling, nanostructure, sub-wavelength摘要
The finite difference time domain (FDTD) method was used to model anti-reflective properties of a variety of sub-wavelength structures for 300 nm to 1300 nm input light. Light hitting non-tapered nanostructures exhibited interference patterns similar to thin film antireflective coatings (ARCs), increasing the antireflective effect at several wavelengths. The lowest reflectance was observed with conical and pyramidal nanostructures with bases of 100 nm or 200 nm and heights of 400 nm or 800 nm.
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