| FPs | Fluorescent proteins |
| GFP | Green fluorescent protein |
| PTFPs | Photo-transformable fluorescent proteins |
| PCFPs | Photo-convertible fluorescent proteins |
| RSFPs | Reversibly switchable fluorescent proteins |
| PALM | Photo activated localization microscopy |
| RESOLFT | Reversible saturable optical fluorescence transitions |
| XFEL | X-ray free electron laser |
| LCLS | Linac coherent light source |
| ESRF | European Synchrotron Radiation Facility |
| SLS | Swiss Light Source |
| ESI | Electron spray ionization |