Ultrafast UV-C laser source + 2D semiconductor-based photodetectors generate/ detect ultrashort laser pulses for femtosecond photonics

https://www.eurekalert.org/news-releases/1111215

"efficiently generated using phase-matched 2nd-order nonlinear processes in optical crystals... linear to super-linear photocurrent response to pulse energy... scalable manufacturing... free-space communication system was demonstrated as a proof of concept, where a message was encoded by the laser source-transmitter and decoded by the 2D sensor-receiver. This research has potential applications in super-resolution microscopy, material processing, optical communications, and spectroscopy"

Related: HKU Engineering scholar demonstrates the smallest all-printed infrared photodetectors to date
https://www.eurekalert.org/news-releases/1111575