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We present results of photoluminescence (PL) studies of single SiO 2 nanoparticles (SiO 2 NPs) and single Si nanocrystals (Si NCs). Single particle spectroscopy reveals almost identical PL spectra for both kinds of nanosized systems. The emission curves exhibit a zero-phonon line and one or two phonon bands, which can be assigned to longitudinal optical phonons in SiO 2 . Using...
We present here a tunable microresonator which can be used to modify the optical properties of single quantum emitters. The 3D-orientation and position of a single molecule is determined with a radially polarized laser beam.
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