Multifunctional metasurface integrates 2 optical functions into single layer, enabling ultra-compact point-of-care medical imaging sensors

https://medicalxpress.com/news/2026-08-devices-metasurface-medical-imaging-smaller.html

"integrates detection elements directly into patterned, brickwork metasurface, funneling THz into active regions rather than requiring separate collection optics... boosts electrical signal strength/ enhances detection efficiency 20X... eliminates dark currents/ functions without: external lenses/ complex detector arrays... scalable, smaller, lower cost, high-precision, quantum detector diagnostic tools across healthcare and scientific research"