以随机统计和数值模拟为研究手段，对高功率超短脉冲激光的远场描述方法进行了分析研究。
Using statistical methods and numerical simulation, the far-field description methods for high power ultra-short pulse laser were established.
随着高功率和超短脉冲激光器的出现，多光子吸收技术已近成为研究材料物理特性的一种有效方法。
With the development of high peak power and ultrashort-pulsed lasers, multi-photon techniques have become an important tool for investigation of physical properties of materials.
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