Review of photonics based on Weyl semimetals

Weyl semimetals are topological materials whose low-energy excitations obey the Weyl equation. In a Weyl semimetal, the conduction and valence bands touch at discrete points in momentum space called Weyl nodes. Weyl nodes ...

A path-setting method to enable vast applications for a graphene

Super strong and only one atom thick, graphene holds promise as a nanomaterial for everything from microelectronics to clean energy storage. But lack of one property has limited its use. Now, researchers at Princeton University ...

Researchers reveal missing optical localized gap modes

Electromagnetically induced transparency (EIT) is a typical quantum destructive interference effect, which possesses many striking properties such as elimination of optical absorption, reduction of group velocity and remarkable ...

Scientists demonstrate tunable, atomically thin semiconductors

To tune the band gap, a key parameter in controlling the electrical conductivity and optical properties of semiconductors, researchers typically engineer alloys, a process in which two or more materials are combined to achieve ...

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