...Michael F. Modest Beam guiding effects during laser drilling due to multiple specular reflections inside the hole are analyzed for the case of very short laser pulses (nanosecond range). Specular reflections are valid for materials that retain a smooth surface during laser evaporation (small...

...J. J. Batteh; M. M. Chen, Professor of Mechanical Engineering; J. Mazumder, Professor of Mechanical Engineering This paper presents a quasi-steady stagnation flow analysis for the material removal processes in high-intensity laser materials processing, such as laser drilling. The governing...