So I get that infrared light is not visible to the human eye without some sort of device to assist in helping you see it, but I was just wondering how that plays into things like lasers. I know you can make an infrared laser, but because infrared is outside of the scope of human visual perception, would an infrared laser still do damage to someone's eye if it were powerful enough? Would it have to be more powerful than a laser of a visual light?
What about black balloons and match heads? I've seen a lot of people on youtube build powerful 1W and above blue / green / red lasers, but would an infrared laser be able to do the same thing to these objects that a regular laser did? How powerful would an infrared laser need to be in order to pop balloons?