US 11,056,856 B2 · Plasmonic laser

Abstract

Embodiments of the invention relate to a plasmonic laser including a substrate and a coaxial plasmonic cavity formed on the substrate and adapted to facilitate a plasmonic mode. The plasmonic laser further includes an electrical pumping circuit configured to electrically pump the plasmonic laser. The coaxial plasmonic cavity includes a peripheral plasmonic ring structure, a central plasmonic core and a gain structure arranged between the peripheral plasmonic ring structure and the central plasmonic core. The gain structure includes one or more ring-shaped quantum wells as gain material. The one or more ring-shaped quantum wells have a surface that is aligned orthogonal to a surface of the substrate. The electrical pumping circuit is configured to pump the plasmonic laser via the peripheral plasmonic ring structure and the central plasmonic core.

Claims20

Dependent claims

A plasmonic laser comprising:

a substrate;
a coaxial plasmonic cavity formed on the substrate and adapted to facilitate a plasmonic mode;
and
an electrical pumping circuit configured to electrically pump the plasmonic laser;
wherein the coaxial plasmonic cavity comprises:
a peripheral plasmonic ring structure;
a central plasmonic core;
and
a gain structure being arranged between the peripheral plasmonic ring structure and the central plasmonic core, the gain structure comprising a plurality radial quantum wells arranged concentrically as gain material in which the radial quantum wells are radially separated from one another by an intervening layer, the radial quantum wells having a surface that is aligned orthogonal to a surface of the substrate;
and
wherein the electrical pumping circuit is configured to pump the plasmonic laser via the peripheral plasmonic ring structure and the central plasmonic core.

8 more elements

Dependencies are inferred from the claim text.

Plasmonic laser

Life of this patent

Plasmonic laser

Life of this patent

Abstract

Claims20