Holey-Metal Microlenses
Researchers at Purdue University have developed a new type of microlens that consists of a thin metal film with nanoscale holes. Unlike conventional microlenses, which are made out of dielectrics, the new lens is only a few hundred nanometers thick and it is completely flat. The small size and simple design make the lenses easier to manufacture and fit into increasingly miniaturized devices. The lens also has a tunable focal length and can focus incident light of any polarization, making it suitable for on-chip and fiber-coupled devices.
PlanarWorks for any polarization Tunable focal length
Electronic devicesLens manufacturers
Alex KildishevPurdue nanoHubPurdue Electrical and Computer Engineering
United States
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美国
