Collimation with a Metalens Based on Nanopillars
Wavefront Phase Error & Propagation Effects
Abstract
This use case presents the design and evaluation of a nanopillar-based metalens for collimating a spherical wave, demonstrating a residual RMS phase error below 0.001λ. Key findings show that phase deviations from pillar diameter discretization are evanescent and vanish upon propagation, but do create stray light.
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