Quantum metasurface ultra-detects THz exploiting in-plane photoelectric effect without requiring complex, external focusing optics

https://www.eurekalert.org/news-releases/1129363

"patterned brickwork-like structure concentrates incoming THz directly into narrow gaps for detection...  in-plane photoelectric effect quantum process transfers photon energy to 2D electron gas generating measurable current... operating at zero source-drain bias avoids dark currents, drastically reducing background noise while offering potential for higher-temperature operation... fabrication similar to standard field-effect transistor: clear/ scalable path toward direct commercial electronic integration"