A research team at KAIST has developed a new technique using a focused ion beam that can increase single-photon purity levels. This technique can be applied to diverse quantum photonic platforms when a quantum emitter lacks single-photon purity....read more
Prof. Cho's group succeeded in controlling the triangular symmetry of nitride semiconductor quantum dots for the first time by using a three-dimensional nano-pyramid structure and a self-limited growth method. With precise control of the symmetry of the quantum dots, it would be useful for developing polarization-entangled photon pair emitters....read more