Output polarization characteristics of a GaN microcavity diode polariton laser

Article

关键词: BOSE-EINSTEIN CONDENSATION;    SEMICONDUCTOR MICROCAVITIES;    ROOM-TEMPERATURE;    DIELECTRIC MICROCAVITY;    EXCITON-POLARITONS;    ALIGNMENT;    LIGHT;    TRAP;   

DOI  :  10.1103/PhysRevB.94.035203

来源: SCIE

【 摘 要 】

We report the steady state output polarization characteristics of GaN-based microcavity polariton lasers operated with electrical injection at room temperature. The output is unpolarized below the nonlinear threshold injection current and is linearly polarized above it with a maximum degree of polarization of similar to 22%. The results have been analyzed theoretically, and the calculated results are in agreement with the measured data. We have also measured the polarization-resolved output light current characteristics, wherein a distinct lowering of the non-linear threshold is observed in one device. This is interpreted in terms of spatially inhomogeneous lifting of degeneracy and polarization splitting in the microcavity.

【 授权许可】

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