Reduced absorption of light by metallic intra-cavity contacts: Tamm plasmon based laser mode engineering

It was widely accepted that embedding of metallic layers into optoelectronic structures is detrimental to lasing due to the absorption in the metal. However, recently macroscopic optical coherence and lasing was observed in microcavities with an intra-cavity single metallic layer. Here we propose the design of the of microcavity-type structure with two or more intra-cavity metallic layers which could serve as contacts for electrical pumping. The design of optical modes based on utilizing peculiarities of Tamm plasmon provides vanishing absorption due to the fixing of the node of the electric field of optical mode to metallic layers. Proposed design can be used for fabrication of vertical cavity lasers with intra-cavity metallic contacts.