There's someone on YouTube who does a lot of home made laser stuff and he uses a 405nm laser in all of his projects. They are powerful enough to nearly instantly light a match. After looking into the site he suggests you get the diode from, I DID find the 808nm diode for $70, free shipping. They have driver circuits and all there.
1 watt 808nm laser diode 1000mW
Probably easiest to get that guy to test to see if he can get vaporization.