Researchers have demonstrated how photon correlations can be used to explore the spectral diffusion of light from a single quantum dot with subnanosecond time resolution. This will help to clarify the origin of frequency jitter, and thereby help to realize narrowband stable condensed matter sources of single photons.
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Orrit, M. Frequency jitter of a nano-emitter. Nature Photon 4, 667–668 (2010). https://doi.org/10.1038/nphoton.2010.230
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DOI: https://doi.org/10.1038/nphoton.2010.230
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