Above-threshold ionization was first observed by Pierre Agostini and colleagues.
Notes on verification
Multiple independent high-quality sources, including Agostini's own Nobel biographical account and peer-reviewed literature, confirm this attribution consistently.
Sources
- Above-threshold ionization (en.wikipedia.org)
- https://www.nobelprize.org/prizes/physics/2023/agostini/biographical/ (nobelprize.org)
- https://www.pnas.org/doi/10.1073/pnas.2321587121 (pnas.org)
- https://pmc.ncbi.nlm.nih.gov/articles/PMC12298348/ (pmc.ncbi.nlm.nih.gov)
- https://link.springer.com/chapter/10.1007/978-1-4615-1351-3_15 (link.springer.com)