I found a bunch of tangential articles by trying to find an answer:

From https://news.ycombinator.com/item?id=40876505 :

> 4. Are SPPs distinct from Cherenkov radiation, and photon-electron-phonon vorticity?

"Coherent Surface Plasmon Polariton Amplification via Free Electron Pumping" (2022) https://www.nature.com/articles/d41586-022-03455-4

How did the emissions vary in this experiment given input Terahertz electrovolt input from a graphene circuit?

From https://news.ycombinator.com/item?id=45715175 :

"Cavity electrodynamics of van der Waals heterostructures" (2024) https://arxiv.org/abs/2403.19745

> ; graphite / graphene optical cavity

..

From https://news.ycombinator.com/item?id=44922581 :

"Grover's algorithm to efficiently prepare quantum states in optical cavity QED" (2025) https://phys.org/news/2025-08-grover-algorithm-efficiently-q...

"Deterministic carving of quantum states with Grover's algorithm" (2025) https://journals.aps.org/pra/abstract/10.1103/s3vs-xz7w

...

"Selective excitation of a single rare-earth ion in an optical fiber" (2025) https://opg.optica.org/oe/fulltext.cfm?uri=oe-33-19-41011 .. https://news.ycombinator.com/item?id=45620981

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From https://news.ycombinator.com/item?id=41442489 :

"Extreme light confinement and control in low-symmetry phonon-polaritonic crystals" like quartz https://arxiv.org/abs/2312.06805 *