Types of Lasers
There are many types of lasers available for research, medical,
industrial and commercial uses. The major types of lasers are:
-
Gas
-
Pumped solid state
-
Dye
-
Diode
Gas lasers use a gas as the active medium. Common gas lasers
are HeNe, CO2, N2, ion, and excimer. Solid state
lasers, such as Nd:YAG, Nd:glass, and ruby, use crystal doped with heavy
muti-electron atoms as the active media. Tunable dye lasers use a dye in
a liquid active medium. Diode lasers use semiconductor materials as the
active media.