LITTLE KNOWN FACTS ABOUT LASER CRYSTAL.

Visible good-condition lasers based on laser crystals are compact and light. Lasers from deep pink to blue have been noted. Specially, there have been lots of studies on Pr3+ doped laser crystals, and continual wave lasers all over 490 nm are already reached. Ti∶sapphire is the primary attain crystal for ultrafast lasers. Superintense ultrafast l