Spontaneous vortices in optically shaped potential profiles in semiconductor microcavities

Article

关键词: EXCITON-POLARITON CONDENSATE;    QUANTIZED VORTICES;    SCATTERING;   

DOI  :  10.1103/PhysRevB.87.081309

来源: SCIE

【 摘 要 】

We investigate the spontaneous formation of quantized vortices in microcavity polariton high density phases. Condensates formed in the optical parametric oscillator excitation scheme reveal single vortices in the case of a ring-shaped optical potential or in the presence of natural photonic disorder. We further investigate the dynamics of vortex formation for resonantly injected polaritons and observe the formation of vortex-antivortex pairs, but no single vortices. The observed effects are explained by the interplay between breaking of y bar right arrow -y reflection symmetry in the system and conservation of optical angular momentum. DOI: 10.1103/PhysRevB.87.081309

【 授权许可】

Free