New nanoparticle source generates high-frequency light

https://phys.org/news/2023-04-nanoparticle-source-generates-high-frequency.html

"medical imaging, studying biological objects, and deciphering details of computer chips... >7X frequency light sent to it.... blue-violet from UV, extreme UV light from red ... create powerful resonances to amplify certain harmonics of emitted light... smaller and cheaper device... conventional limited by the wavelength of light: violet light has the wavelength of about 400 nm... save resources and time on bad chip batches... tiny, inexpensive sources extreme UV"

Related: 

Newly observed effect makes atoms transparent to certain frequencies of light

https://phys.org/news/2023-04-newly-effect-atoms-transparent-frequencies.html

Nanoparticles help scientists zoom in on super small objects

https://www.anu.edu.au/news/all-news/nanoparticles-help-scientists-zoom-in-on-super-small-objects