| YAG | Yttrium aluminum garnet |
| NIR | Near-infrared |
| RE | Rare-earth |
| XRD | X-Ray diffraction |
| FWHM | Full width at half maximum |
| EDS | Energy-dispersive X-ray spectroscopy |
| STEM | Scanning transmission electron microscope |
| TEM | Transmission electron microscopy |
| HRTEM | High-resolution transmission electron microscopy |
| PTI | Photon technology international |
| FIB | Focused ion beam |
| SAED | Selected area electron diffraction |
| PED | Precession electron diffraction |
| HAADF | High-angle annular dark field |
| Cs | Spherical aberration correction |