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arXiv · 2001.06523

Large-area, high-NA Multi-level Diffractive Lens via inverse design

Monjurul Meem·Sourangsu Banerji·Christian Pies·Timo Oberbiermann·Beradi Sensale-Rodriguez·Rajesh Menon
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Abstract

Flat lenses enable thinner, lighter, and simpler imaging systems. However, large-area and high-NA flat lenses have been elusive due to computational and fabrication challenges. Here, we applied inverse design to create a multi-level diffractive lens (MDL) with thickness <1.35{\mu}m, diameter of 4.13mm, NA=0.9 at wavelength of 850nm. Since the MDL is created in polymer, it can be cost-effectively replicated via imprint lithography.

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Monjurul Meem, Sourangsu Banerji, Christian Pies, Timo Oberbiermann, Beradi Sensale-Rodriguez, Rajesh Menon. 2020-01-17. Large-area, high-NA Multi-level Diffractive Lens via inverse design. https://arxiv.org/abs/2001.06523

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