Point the transmitter at the window of the room you want to listen in on and the laser can be reflected back to the receiver. The receiver module has a phototransistor to pick up the infrared ...

a bunch of hacking academics at the University of Michigan researched the ability to flicker a laser at audible sound frequencies to see if they could remotely operate microphones simply by ...

First on-chip, picosecond MIR laser pulse generator to requires no external components.

Laser-based infrared molecular fingerprinting detects cancer, demonstrating its potential for clinical diagnostics. With further technological developments and independent validation in ...