Slow-light-enhanced single quantum dot emission in a unidirectional photonic crystal waveguide
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We report the observation of a Purcell enhancement of the in-plane spontaneous emission rates of InAsself-assembledquantum dots coupled to a mode of a unidirectional photonic crystal waveguidefabricated in GaAs(001). Three-dimensional finite-difference time-domain simulations predict the existence of high quality-factor modes due to the slow light resonances of the waveguide. These modes have been observed experimentally with microphotoluminescence and produce enhanced in-plane emission when resonant with a quantum dot.
Applied Physics Letters
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