Near-field hyperspectral quantum probing of multimodal plasmonic resonators
Abstract
Quantum systems, excited by an external source of photons, display a photodynamics that is ruled by a subtle balance between radiative or nonradiative energy channels when interacting with metallic nanostructures. We apply and generalize this concept to achieve a quantum probing of multimodal plasmonic resonators by collecting and filtering the broad emission spectra generated by a nanodiamond (ND) hosting a small set of nitrogen-vacancy (NV) color centers attached at the apex of an optical tip. Spatially and spectrally resolved information on the photonic local density of states (ph-LDOS) can be recorded with this technique in the immediate vicinity of plasmonic resonators, paving the way for a complete near-field optical characterization of any kind of nanoresonators in the single photon regime.
- Publication:
-
Physical Review B
- Pub Date:
- March 2017
- DOI:
- 10.1103/PhysRevB.95.121402
- Bibcode:
- 2017PhRvB..95l1402C