ABSTRACTIn testing the CO2lasers in CW and pulse mode, the erbium:YAG, the Nd:YAG 1318 μm and 1064 μm, the argon, the holmium:YAG, and the excimer, we found the greatest efficiency in the CO2CW and pulse mode, and the lowest efficiency in the argon. Data with the holmium:YAG were unreliable because of the early generation laser tested. The Nd:YAG was second only to the CO2laser, and because the latter has no waveguide, we deemed the Nd:YAG the laser of choice for PLD
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