Metasurface enabled compact chiral-vertical cavity surface emitting laser

A vertical cavity surface emitting laser, VCSEL, component, comprising:

• a light emitting structure configured to emit a light of a frequency, and
• at least one mirror structure on or above the light emitting structure, wherein the mirror structure comprises a plurality of optical nano-elements, wherein the optical nano-elements are configured to comprise a first reflectivity for light of the frequency having a first chirality and a second reflectivity for light of the frequency having a second chirality, wherein the second chirality is opposing to the first chirality, and wherein the first reflectivity is larger than the second reflectivity, and wherein the plurality of optical nano-elements comprises a plurality of optical nano-element pairs, wherein each optical nano-element pair comprises a first optical nano-element and a second optical nano-element, wherein the first optical nano-element differs in at least one characteristic from the second optical nano-element;
• and
• wherein the first elongated subportion is arranged on or above the second elongated subportion.