نوع فایل power point   قابل ویرایش 59 اسلاید   قسمتی از اسلایدها Basic Operating Concept Electrons moved from ground state to higher energy state. When electrons descend to ground state, photons emitted of specific wavelength. Photons oscillate in mirrored resonator Increases intensity by stimulating emission of additional photons of same wavelength and phase. Photons escape via output coupler Irradiance (Power Density) Expressed in W/cm2 Function of the beam power divided by beam area Beam area a function of: Beam size at aperture Beam divergence Distance from aperture > irradiance > potential hazard   فهرست مطالب و اسلایدها Objectives TxState Laser Safety Program LASER Laser Light Basic Operating Concept Continuous Wave Lasers Irradiance (Power Density) Pulsed Lasers Radiant Exposure (Energy Density) Laser Types Excitation Sources ANSI Classification Laser Applications Laser ...