All-glass, large-diameter metalens working at visible wavelengths made with conventional computer chip manufacturing methods

November 23, 2019

Large metalens

Metalenses are flat lenses that are ultrathin and lightweight, and are typically realized by placing millions to billions of nano-structures on a surface. The large number of structures makes scalability in both size and production scale a major concern. In our recent...

Laughing gas laser: Widely tunable compact terahertz gas lasers with nitrous oxide

November 15, 2019

Laughing gas laser

We recently demonstrated a molecular gas laser that emits at frequencies between 250 GHz up to almost 1 THz using nitrous oxide (commonly known as laughing gas) as the gain medium. This laser relies on the optical pumping of the gas by a quantum cascade laser and can be...

Flatland light: polariton nanophotonics

November 13, 2019

Polariton

Hexagonal boron nitride is a layered material with some very interesting optical properties: when the edge of a thin flake of boron nitride is illuminated with infrared light, part of the light becomes trapped inside the flake and can only propagate across the two-dimensional surface of the flake as... Read more about Flatland light: polariton nanophotonics

Compact metalens depth sensor inspired by spiders

November 13, 2019

Spider eye metalens

In recent work, we have shown that a multi-functional metalens can be designed to mimic the eyes of a certain class of spiders found in nature, whose multi-layered retinae allow for the acquisition of multiple images at varying degrees of focus. From these multiple...

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Capasso Group

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All-glass, large-diameter metalens working at visible wavelengths made with conventional computer chip manufacturing methods

Laughing gas laser: Widely tunable compact terahertz gas lasers with nitrous oxide

Flatland light: polariton nanophotonics

Compact metalens depth sensor inspired by spiders

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