Photonic Crystal Nanocavity Lasers
By creating two-dimensional photonic crystals, which are microfabricated into InGaAsP slabs, researchers from Caltech and USC have recently defined the smallest lasers to date. When combined with high index contrast slabs in which light can be efficiently guided, microfabricated two-dimensional photonic bandgap mirrors provide the geometries needed to confine light into extremely small volumes with high Q.
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