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】
Free