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The CO2 Laser
Detectors Resonators and Optical Components
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absorbed absorption coefficient attenuation cavity cm/min constant conventional cooling cutting cw C02 laser cw laser density depth detector devices diameter discharge drilling Duley effect electrode electron emission excitation film flux focal focusing frequency fused quartz gain-switched Gaussian beam high-power hole incident intensity incident laser increase infrared irradiated laser beam laser heating laser intensity laser output laser power laser pulse laser radiation laser systems laser welding layer material maximum measured melting metal mode modulation molecules nsec obtained occurs operation optic axis output power particles peak penetration photon population inversion pressure produced propagation pulse length pyroelectric detectors Q-switched ratio reaction reported resonator rotational ruby laser sample sheet shown in Fig shows slab solid spark gap speed stainless steel stimulated emission substrate surface target TEA laser temperature thermal thermal conductivity thickness thin tion transfer transition tube vaporization vibrational voltage wavelength welding width workpiece