Multiple-pulse lasing from an optically induced harmonic confinement in a highly photoexcited microcavity
arXiv:1502.00040 · doi:10.1364/OPTICA.3.001477
Abstract
We report the observation of macroscopic harmonic states in an optically induced confinement in a highly photoexcited semiconductor microcavity at room temperature. The spatially photomodulated refractive index changes result in the visualization of harmonic states in a micrometer-scale optical potential at quantized energies up to 4 meV even in the weak-coupling plasma limit. We characterize the time evolution of the harmonic states directly from the consequent pulse radiation and identify sequential multiple 10 ps pulse lasing with different emitting angles and frequencies.
5 pages, 4 figures, and Supplemental Material ( 7 supplementary figures, materials and methods, and theoretical modeling)
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