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Confocal fluorescence image of a pattern of TR12 centers. The excitation wavelength is 473 nm, the detection above 500 nm.
Second-order autocorrelation function (antibunching) of a single TR12 center at room temperature.
Fluorescence spectrum of a single TR12 center at . The zero phonon line at 470.5 nm belongs to the TR12 defect. The measured line width (half width at half maximum) is 0.14 nm (limited by spectrometer resolution).
Fluorescence lifetime measurement of a single TR12 center at . The solid line is an exponential with decay constant of 3.6 ns corresponding to the lifetime of the excited state.
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