Molecular dynamics simulation of ultrashort laser ablation of nickel

Peter A. Atanasov; Nikolay N. Nedialkov; Semra E. Imamova; Helmut Huegel; Friedrich Dausinger; Andreas Ruf

doi:10.1117/12.425150

9 April 2001 Molecular dynamics simulation of ultrashort laser ablation of nickel

Peter A. Atanasov, Nikolay N. Nedialkov, Semra E. Imamova, Helmut Huegel, Friedrich Dausinger, Andreas Ruf

Proceedings Volume 4397, 11th International School on Quantum Electronics: Laser Physics and Applications; (2001) https://doi.org/10.1117/12.425150
Event: 11th International School on Quantum Electronics: Laser Physics and Applications, 2000, Varna, Bulgaria

Abstract

Laser materials processing has been used in the industry for drilling, cutting, welding, scribing, and etc. In most of the scientific papers, the authors assume that the laser energy imparted to the material is transformed into heat. This induces phase transformation as melting, fusion, sublimation, or vaporization. It is known that the atoms and ions are produced in high density plasma plume due to laser irradiation. In order to clarify microscopically the ablation and vaporization phenomena the material must be regarded as an aggregate of atoms or molecules, not as a continuum. It is difficult to observe the processing phenomena experimentally, because it occurs in very small region and for a very short time interval. Consequently, the phenomena must be elucidated by theoretical analyses or simulation to some extent. Laser ablation of nickel has been investigated by molecular dynamics simulation. The process of determination of equilibrium in the atomic system was examined as a first stage of simulation. The influence of the laser energy fluence on the process of ablation was studied. The threshold for ablation, values of the velocities of the ablated atoms were obtained.

Citation Download Citation

Peter A. Atanasov, Nikolay N. Nedialkov, Semra E. Imamova, Helmut Huegel, Friedrich Dausinger, and Andreas Ruf "Molecular dynamics simulation of ultrashort laser ablation of nickel", Proc. SPIE 4397, 11th International School on Quantum Electronics: Laser Physics and Applications, (9 April 2001); https://doi.org/10.1117/12.425150

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available