Detection of Luminescent Nanodiamonds Using a Scanning Near-Field Optical Microscope with an Aperture Probe
Abstract
Scanning near-fi eld optical microscopy (SNOM) with an aperture probe has been used to map the luminescence of isolated submicron diamond crystallites. 532-nm laser light was used to excite luminescence of nitrogen-vacancy (NV) centers. The sizes of the analyzed diamond crystallites were determined with an atomic-force microscope. The optical resolution for the lateral dimensions of the luminescing diamond crystallites was doubled on going from confocal luminescence microscopy to scanning near-fi eld optical microscopy with a 290-nm probe aperture diameter.
- Publication:
-
Journal of Applied Spectroscopy
- Pub Date:
- September 2016
- DOI:
- 10.1007/s10812-016-0340-z
- Bibcode:
- 2016JApSp..83..639S
- Keywords:
-
- luminescence;
- diamond;
- nitrogen-vacancy center;
- near-fi eld optical microscopy