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２１２圆环光束的光束质量评价标准分析程晓锋（西南流体物理研究所，成都６１０００３）近几年，国际标准化度量局（ＩＢＯ）为了统一激光束光束质量评价标准，提出了新的被称为质量因子（ｔｈｅｂｅａｍｑｕａｌｉｔｙｆａｃｔｏｒ）或衍射极限倍因子（ｔｉｍｅｓ－ｄｉ...
212 Standard Analysis of Beam Quality of Circular Beams CHENG Xiaofeng (Southwestern Institute of Fluid Physics, Chengdu 610003) In recent years, in order to unify the standard of laser beam quality evaluation, the International Standardization Measurement Bureau (IBO) proposed a new method called quality factor (Thebeamqualityfactor) or diffraction limit times factor (times-di ...