Sub-wavelength confinement of light demonstrated in indium phosphide nanocavity

https://phys.org/news/2024-01-wavelength-confinement-indium-phosphide-nanocavity.html

"nanocavity mode volume order magnitude smaller enables deep subwavelength light confinement... energy efficient... optimized topology while relaxing geometric constraints... 20 nm dielectric, 4X smaller than diffraction-limited nanocavity volume... direct band-to-band transitions of III-V harnessing Purcell enhancement provided by nanocavities... data centers, high-speed low-energy optical links, super-resolution microscopy, sensors (environmental monitoring, food safety, security), future: nanolaser or nanoLED"

Related: Breaking boundaries in quantum photonics: New nanocavities unlock new frontiers in light confinement
https://phys.org/news/2024-02-boundaries-quantum-photonics-nanocavities-frontiers.html