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A block letter W imaged by three different prototype metalenses (A, B and C) using different mathematical models — both without (left) and with (right) computational postprocessing.Liu et al., Nano Letters, 2018

Scientists engineered a functional optical lens out of 2D materials

Ultrathin materials are increasingly replacing traditional thick glass lenses used today in cameras and imaging systems. These engineered lenses — known as metalenses, consist of materials constructed at...