Laser ablation of organic materials: hydrodynamic model

Irina N. Zavestovskaia; Yuri V. Afanasiev; Boris N. Chichkov; Vladimir A. Isakov

doi:10.1117/12.407323

16 August 2000 Laser ablation of organic materials: hydrodynamic model

Irina N. Zavestovskaia, Yuri V. Afanasiev, Boris N. Chichkov, Vladimir A. Isakov

Proceedings Volume 4065, High-Power Laser Ablation III; (2000) https://doi.org/10.1117/12.407323
Event: High-Power Laser Ablation, 2000, Santa Fe, NM, United States

Abstract

The applicability of hydrodynamic models for theoretical description of UV laser ablation of polymers is studied. The plume formation is considered as a first-kind phase transition. In case of strongly absorbing polymers this phase transition occurs as a surface evaporation, and in case of weakly absorbing polymers as a bulk evaporation. The vapor plume is assumed to be transparent for laser radiation, and its expansion is described by the isoentropic hydrodynamic equations. New analytical expressions for ablation (etch) depths per pulse are obtained, which are in a good agreement with the available experimental data.

Citation Download Citation

Irina N. Zavestovskaia, Yuri V. Afanasiev, Boris N. Chichkov, and Vladimir A. Isakov "Laser ablation of organic materials: hydrodynamic model", Proc. SPIE 4065, High-Power Laser Ablation III, (16 August 2000); https://doi.org/10.1117/12.407323

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