Flat Lens for a Wide Field of View

The metalens consists of a single nanometric layer of silicon on arrays of nanoposts

Improving Metalenses with Liquid Crystals

Improved optics by combining nanostructured metasurfaces with liquid crystal technology

New Lens for High Resolution Imaging

An innovative method to fabricate high performance lenses in monolayer two dimensional transitional metal dichalcogenide material

Topological Photonics in Fractal Lattices

A fractal photonic crystal consists of evanescently coupled helical waveguides

An Ultra-Thin Terahertz Metalens

The new collimator made of a metasurface has an extremely high refractive index and low reflectance

Metalenses with Integrated Liquid Crystals

New combination achieves achromatic and chromatic focusing with a single metalens

Spider Silk for Lenses

The silk fiber is directly extracted from the cellar spider and used to form the dome lens by its liquid-collecting ability

Plug-and-Play Lens for Microscopy

New device makes it easy to access high-quality images from deep inside tissue

An Ultrathin Flat Lens with a Broad Bandwidth

A fishnet-achromatic-metalens captures 70% of incoming light in frequencies ranging from 640 nanometers to 1200 nanometers

Superlens Squeezes Light into Nanospace

Plasmon nanojet: an efficient mechanism for subwavelength focusing of plasmons