Four SAIC inventors have been looking at the other side of LiDAR physics. They have received a US patent that uses nanotechnology for countering laser technology. The systems use nanocomponent material that is tailored to cloak or obscure a target from detection by transmitted laser radiation. The nanodot material absorbs and/or down-converts the transmitted laser radiation.
This of course has applications in creating defenses against laser-guided weapons. They can use the nanodots to absorb laser radiation and change the wavelength such that the receiver cannot detect the return, and they can use nanodots on decoy vehicles that encourage the enemy to attack these targets.
Now I wonder if there is a non-military application for this approach.