Bragg confinement of carriers in a shallow quantum well

A novel Bragg confining structure is proposed and analyzed. The combination of a shallow quantum well with superlattice‐Bragg reflectors makes it possible to tailor separately the eigen‐energy, and the wave function of the Bragg confined state. Longer lifetimes and higher effective barriers than in previously proposed Bragg confining structures is possible with the present scheme. Photoluminescence at energies close to the highest direct bandgap of the material system in use is expected from the proposed structure.