How far into the infrared can a colour centre in diamond emit?
Infrared emission has been observed for the nitrogen-vacancy (NV-) colour centre in diamond, in addition to the characteristic red emission of this centre . However, this infrared emission zero-phonon line at 1046 nm is about four orders of magnitude weaker than the red emission. This is somewhat surprising, as a third of the population is known to decay without the red emission and the infrared emission is considered to be associated with the alternative decay path. The most obvious...[Show more]
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