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arXiv · 1401.3435

Overcoming Auger recombination in nanocrystal quantum dot laser using spontaneous emission enhancement

Shilpi Gupta·Edo Waks
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Abstract

We propose a method to overcome Auger recombination in nanocrystal quantum dot lasers using cavity-enhanced spontaneous emission. We derive a numerical model for a laser composed of nanocrystal quantum dots coupled to optical nanocavities with small mode-volume. Using this model, we demonstrate that spontaneous emission enhancement of the biexciton transition lowers the lasing threshold by reducing the effect of Auger recombination. We analyze a photonic crystal nanobeam cavity laser as a realistic device structure that implements the proposed approach.

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Shilpi Gupta, Edo Waks. 2014-01-15. Overcoming Auger recombination in nanocrystal quantum dot laser using spontaneous emission enhancement. https://doi.org/10.1364/oe.22.003013

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