LITTLE KNOWN FACTS ABOUT LASER CRYSTAL.

Visible reliable-state lasers dependant on laser crystals are compact and lightweight. Lasers from deep purple to blue are already noted. Particularly, there have been plenty of reports on Pr3+ doped laser crystals, and ongoing wave lasers all around 490 nm happen to be obtained. Ti∶sapphire is the key gain crystal for ultrafast lasers. Superinte