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首页> 外文期刊>Physica Scripta: An International Journal for Experimental and Theoretical Physics >Theoretical evaluation of radiation pressure magnitudes and effects in laser material processing
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Theoretical evaluation of radiation pressure magnitudes and effects in laser material processing

机译：辐射压力幅度和激光材料加工作用的理论评价

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摘要

Laser beam radiation and particularly its effects on irradiated materials are commonly specified in terms of intensity. However, laser beam radiation is also a carrier of considerable momentum as a result of high photon flow rates which give rise to a pressure acting at the surface of irradiated probes. Both characteristics, i.e. intensity and radiation pressure are directly related, and resultant effects cannot be easily distinguished from each other under real processing conditions. The current analysis presents theoretical estimations of the different pressure levels that are supposed to be involved in interactions with target surfaces in continuous wave and pulsed-wave laser applications. The results demonstrate that neglecting the radiation pressure seems not to be justified for an appropriate physical characterization and/or interpretation of effects in a number of established laser applications. It is concluded that there is a need to evaluate more profoundly the role of radiation pressure by appropriate experimental and theoretical studies.
机译：激光束辐射，特别是其对辐射材料的影响通常在强度方面规定。然而，由于高光子流速的结果，激光束辐射也是相当长的动量的载体，这导致发挥在照射探针表面的压力。特征，即强度和辐射压力直接相关，并且在实际加工条件下，不能容易地区分效果。目前的分析介绍了应该参与连续波和脉冲波激光应用中的目标表面相互作用的不同压力水平的理论估计。结果表明，忽略辐射压力似乎不适合许多建立的激光应用中的适当的物理特征和/或对效果的解释。得出结论，需要更深刻地评估辐射压力的作用，通过适当的实验和理论研究。

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