Synonyms
Definition
Laser ablation describes a material removal mechanism in which a material is removed in gaseous state directly from a solid state by irradiating it with high optical intensities.
Theory and Application
Laser radiation consists of electromagnetic radiation with an electric field (E) and a magnetic field (H). The absorption of radiation in materials is done via excitation of electrons (free or bound) inside the bulk material. Interaction will only take place with electrons of the atoms, since the nucleus weight is too large to follow the high-frequency laser radiation field. According to Dahotre and Harimkar (2008), the following set of equations describes the effects of linear absorption mechanisms for materials like metals or graphite. The imposed force on the electron can be described as
where e represents electron charge, E the electric field, v the electron velocity, and cthe speed of...
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References
Craig G, Welch A (2001) Optical and thermal response of tissue to laser radiation. In: Waynant RW (ed) Lasers in medicine. CRC Press, Boca Raton, pp 27–45
Dahotre NB, Harimkar SP (2008) Laser materials interactions. In: Laser fabrication and machining of materials. Springer, New York, pp 34–65
Gillner A, Horn A, Johnigk C (2011) Ablation. In: Poprawe R (ed) Tailored light 2: laser application technology. Springer, Berlin, pp 343–363
Lewis LJ, Perez D (2010) Theory and simulation of laser ablation: from basic mechanisms to applications. In: Sugioka K, Meunier M, Piqué A (eds) Laser precision microfabrication. Springer, Berlin, pp 35–61
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Weingärtner, E., Wegener, K., Dold, C. (2019). Laser Ablation. In: Chatti, S., Laperrière, L., Reinhart, G., Tolio, T. (eds) CIRP Encyclopedia of Production Engineering. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-53120-4_6474
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DOI: https://doi.org/10.1007/978-3-662-53120-4_6474
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