THE BEST SIDE OF LASER CRYSTAL

Obvious good-condition lasers based upon laser crystals are compact and light-weight. Lasers from deep red to blue have already been reported. Primarily, there were lots of experiences on Pr3+ doped laser crystals, and steady wave lasers about 490 nm have been realized. Ti∶sapphire is the key attain crystal for ultrafast lasers. Superintense ultr