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. 2017 Apr 3;114(16):4060–4065. doi: 10.1073/pnas.1704219114

Fig. 5.

Fig. 5.

Increase in ZPL spontaneous emission rates and reduction in fluorescence lifetime. (A) Full spectrum of cavity showing highest Purcell enhancement when on-resonance with V1′ ZPL (Upper) and V1 ZPL (Lower), labeled by the fraction of light emitted into the ZPLs on-resonance. (Inset) Spectrum taken when the cavity is blueshifted from both ZPLs. Nearly 50% of the SiV emission is directed into the V1′ ZPL on-resonance. (B) Fluorescence lifetime measurements when the cavity mode is blueshifted from the ZPLs (blue) and on-resonance with the V1′ ZPL (green). A lifetime measurement of the SiV in bulk (red) is also shown. As expected, the emitter lifetime is increased when the cavity mode is off-resonance and decreased when it is on-resonance.