Efficient beam splitting using zero-load-impedance metagratings: publisher's note.

This publisher's note contains corrections to Opt. Lett.48, 3275 (2023)10.

Efficient beam splitting using zero-load-impedance metagratings.

Metagratings with zero load impedance are proposed to achieve efficient beam splitting. Different from previously proposed metagratings that require specific capacitive and/or inductive structures to achieve load impedance, the metagrating proposed here consists solely of simple microstrip-line structures. Such a structure overcomes the implementation constraints such that low-cost fabrication technology can be applied for metagratings operating at higher frequencies.