... the transmitted light. Images are taken from the back of the sample at various time delays with respect to the beginning of the ablation process, allowing the transient hole area to be measured. For low fluences, the hole opening process is delayed long after the laser pulse and there is significant scatter...

...S. Rameche Candane; C. Balaji; S. P. Venkateshan A quasi-one-dimensional ablation analysis for a sharp-nosed, reusable, re-entry vehicle that could possibly be used in an unmanned space program, has been carried out by using an in-house code. The code is based on the boundary immobilization...

... ), and others. Multiple reflections during laser drilling have also been addressed by a number of researchers. Ramanathan and Modest ( 5 ) used an approximate conduction and ablation model to simulate laser drilling with diffuse reflections, noting that the nonlinear feedback between irradiation and surface...

...Michael Epstein This paper presents a one-dimensional steady-state model of heat and water vapor transport just beneath an ablating concrete surface. In the model an evaporation front separates a dry porous region through which water vapor flows to the ablation front from a semi-infinite region...

... the thermodynamic critical point, the liquid undergoes a phase explosion that turns the melt into a mixture of liquid and vapor. This article describes heat transfer and phase change phenomena during nanosecond pulsed laser ablation of a metal, with an emphasis on phase explosion and non-equilibrium phase change...

...-liquid transformations Ablation Heat Transfer Laser Molecular Dynamics In recent years, ultrashort pulsed lasers have been rapidly developed and employed in materials processing. Due to the extremely short pulse duration, many difficulties exist in experimental investigation of laser...

...S. S. Chu; C. P. Grigoropoulos Pulsed laser deposition (PLD) of thin films has become a viable technique for a wide range of applications over the last few decades. As kinetic energy of the ablated plume is an important parameter in determining the quality of the film; consequently there is great...

...V. Petrushevsky; S. Cohen A one-dimensional, nonlinear inverse heat conduction problem with surface ablation is considered. In-depth temperature measurements are used to restore the heat flux and the surface recession history. The presented method elaborates a whole domain, parameter estimation...

... melting and ablation of material, also result in large localized thermal stresses within the narrow heat-affected zone, which can lead to microcracks, significant decrease in bending strength, and even catastrophic failure. In order to assess the where, when, and what stresses occur during laser drilling...