Unique nanodisk pushing photonic research forward

https://www.chalmers.se/en/current/news/f-unique-nanodisk-pushing-photonic-research-forward/

"near-IR laser excites nanodisk fabricated from 3R-molybdenum disulfide flake standing on glass substrate... higher density electromagnetic field localized alongside crystalline lattice broken inverse symmetry allowing  red pump laser conversion into blue light (doubled frequency)... combines nonlinear/ high-index nanophotonics in single disk-like nanoobject... >10,000X more efficient, 100,000X thinner... specifically stacked molybdenum disulfide... 4.5 refractive refractive index  in visible range... nonlinear optical devices"