Enhancement of a nanocavity lifetime using slow light propagation

We demonstrate that the lifetime of a nanocavity can be enhanced by inserting a medium with a strong index dispersion in the cavity. The strong dispersion is achieved through coherent population oscillations effect in the quantum wells of a two-dimensional photonic crystal nanocavity. The initial cavity lifetime of ~3-6ps has been extended to a maximum value of about 336 ps.

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