Photo-ionization of the nitrogen-vacancy center in diamond
In this paper it is shown that the [N-V]- center in diamond is not photochemically stable. With intense excitation a proportion of the [N-V]- centers in a crystal are converted to [N-V]0 centers. Two ionization processes are identified. One occurs when the center is directly excited to the first excited state. The other process is indirect and occurs when there is photo-ionization of the accompanying substitutional nitrogen centers in the crystal. The dynamics and the wavelength dependence of...[Show more]
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|Source:||Diamond and Related Materials|
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