Abstract
Engineering the photo-emission characteristics of single-photon emitters is crucial for the growing field of quantum technologies. We show that the photoluminescence of a single nitrogen-vacancy color center in nanodiamond could be significantly enhanced when attached to a gold film of 50 nm with preserving photophysical properties as a single photon source. The nitrogen-vacancy center on the gold film showed a decreased excited-state lifetime and a modified saturation characteristic. The photoluminescence enhancement was due to the enhanced electric field by the surface plasmon and the energy transfer from the excited state of nitrogen-vacancy centers to the surface plasmon.
| Original language | English |
|---|---|
| Article number | 5688285 |
| Pages (from-to) | 374-376 |
| Number of pages | 3 |
| Journal | IEEE Photonics Technology Letters |
| Volume | 23 |
| Issue number | 6 |
| DOIs | |
| State | Published - 2011 |
Keywords
- Gold film
- nanodiamond
- nitrogen-vacancy (NV) color center
- surface plasmon