I was thinking about this the other day when watching a video about Chernobyl.
They flew countless helicopters over the exposed reactor core and because this was 1986, helicopters didn't have a million sensors or electronics in it. It was entirely mechanical. Effectively all in-use aircraft nowadays could not complete such a mission as the electronics would be rendered null almost instantaneously, even with ECC, etc.
Do these high energy lasers fry the electronics, or are they able to simply ignite and burn holes through the aircraft?