On Wednesday, October 19, 2016 at 4:19:24 PM UTC-4, wrote:
I must be looking in the wrong places because I have not yet been able
to find out which metals absorb which frequencies of light best. I am
looking at heating various metals with a laser so I need to know which
laser will work best for which metal. Anybody here have any pointers?
Thanks,
Eric

Heating to how hot? ~60-100 C or heating to 1000 C,
or laser melting and cutting?

George H.