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Control over spontaneous emission of quantum dots is important for many applications, especially as light sources in photonic materials and nanostructures. Colloidal CdSe quantum dots have recently generated enormous interest because of the tunability of their emission energy with particle diameter over the entire visible range. The strength of the interaction of a quantum dot with the light field...
We present time-resolved spontaneous emission measurements of a single quantum dot that is temperature tuned around the band edge of a photonic crystal waveguide. 85% efficient coupling to the slow-light waveguide mode is obtained.
We define a practical measure for the degree of fractional decay and establish conditions for the effect to be observable for quantum dots in photonic crystals exhibiting absorptive losses.
We have measured time-resolved spontaneous emission from quantum dots in 3D photonic crystals. Due to the spatially dependent local density of states, the distribution of decay rates varies strongly with the photonic crystal lattice parameter.
It is experimentally demonstrated how quantum noise of light is transported through a multiple scattering random medium. We predict the existence of novel spatial quantum correlations that are induced by multiple scattering.
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