Laser material damage caused

As described on p. 197, CCI4 is a toxic substance and must be used with care. Clean up any spillage, and dispose of waste materials properly. Laser beams can cause serious eye damage, and safety goggles must be worn. 

In what follows, the laser damage characteristics are discussed when both alternating current electric fields and ultra-short pulse lasers are simultaneously applied to the dielectric materials. It is true that very high electric fields may allow the electron to reach an energy level sufficient to ionize, causing the impact ionization. As discussed earlier, the damage... 

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