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A random laser is an unconventional laser that utilizes multiple light scattering in a disordered gain medium for optical feedback and confinement. I review the unique characteristic of the random laser and its potential applications in parallel imaging and projection.
We demonstrate experimentally that by optimizing the spatial pump profile we can select different modes to lase in a semiconductor microdisk cavity, and suppress lasing in all other modes by increasing their thresholds.
We systematically studied the lasing characteristics in photonic polycrystalline and amorphous structures under optical pumping. The lasing modes are spatially localized, and blue shift as the structural order becomes short ranged.
We demonstrate lasing in two-dimensional deterministic aperiodic nanostructures with optical pumping. The lasing modes are strongly localized within the structures. Such lasers combine the advantages of both photonic crystal lasers and random lasers.
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