Improved thermal model and its application in UV high-power pulsed laser ablation of metal target

Fang, Ranran; Duan-Ming, Zhang; Li, Zhihua; Yang, Fengxia; Li, Li; Tan, Xiaotian; Sun, Mingliang

doi:10.1016/j.ssc.2008.01.002

Cited by 37 publications

(14 citation statements)

References 25 publications

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“…The plasma will reduce the amount of energy reaching the target surface by absorbing a percentage of the incoming beam, a process known widely as plasma shielding. [4][5][6] For interactions employing high intensity pulsed lasers, the density and the temperature of the plasma are sufficiently high resulting in an explosive expansion outward away from the target surface, generating plasma shock waves 6 [ Figure 1]. …”

Section: Modelingmentioning

confidence: 99%

Laser induced plasma on copper target, a non-equilibrium model

2014

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International audienceThe aim of this work is to present a comprehensive numerical model for the UV laser ablation of metal targets, it focuses mainly on the prediction of laser induced plasma thresholds, the effect of the laser-plasma interaction, and the importance of the electronic non-equilibrium in the laser induced plume and its expansion in the background gas. This paper describes a set of numerical models for laser-matter interaction between 193-248 and 355 nm lasers and a copper target. Along with the thermal effects inside the material resulting from the irradiation of the latter with the pulsed laser, the laser-evaporated matter interaction and the plasma formation are thoroughly modelled. In the laser induced plume, the electronic nonequilibrium and the laser beam absorption have been investigated. Our calculations of the plasmas ignition thresholds on copper targets have been validated and compared to experimental as well as theoretical results. Comparison with experiment data indicates that our results are in good agreement with those reported in the literature. Furthermore, the inclusion of electronic non-equilibrium in our work indicated that this important process must be included in models of laser ablation and plasma plume formation. (C) 2014 AIP Publishing LLC

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Section: Modelingmentioning

confidence: 99%

Laser induced plasma on copper target, a non-equilibrium model

2014

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“…Figure 3 shows Because an infrared laser of 1,064nm was selected for the laser ablation of the grinding wheel, inverse bremsstrahlung absorption is the most important mechanism [23]. At this time, the transmittance of laser energy was exp(-a IB H).…”

Section: The Plasma Shielding Effect In the Laser Ablation Of A Bronzmentioning

confidence: 99%

Research and application of surface heat treatment for multipulse laser ablation of materials

Cai

Chen

Zhou

2015

Applied Surface Science

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“…Consequently, a numerical solution can include more detailed physics of the problem and thus reveal the effect of different phenomena on the process. 18 A variety of finite difference [19][20][21] and finite element 22-24 models for pulsed laser heating of the target exists that describe the heating on a macroscopic scale by considering the Fourier heat conduction equation with the laser heat as the source term. These models assume instantaneous conversion of laser radiation into heat and are accurate for pulses ranging from seconds to nanoseconds.…”

Section: Physical Phenomena Leading To the Heating Of The Targetmentioning

confidence: 99%

A Review of Simulation Methods of Laser Matter Interactions Focused on Nanosecond Laser Pulsed Systems

Kaselouris

Nikolos

Orphanos

et al. 2013

J. Multiscale Modelling

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A review study of the developments in the field of pulsed laser-solid interaction simulation methods, for moderate laser energies, is presented. The paper is focused on the methods that numerically simulate the interactions of pulsed ns-laser with solid metal targets. Three main regimes for pulsed laser excitation, are well established, namely, the thermoelastic, melting and plasma regimes. The modelling and simulation techniques that may numerically describe these three regimes and the occurring dynamic matter responses are reviewed. Modelling efforts concerning various fields of applications of lasers are briefly discussed.

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Improved thermal model and its application in UV high-power pulsed laser ablation of metal target

Cited by 37 publications

References 25 publications

Laser induced plasma on copper target, a non-equilibrium model

Laser induced plasma on copper target, a non-equilibrium model

Research and application of surface heat treatment for multipulse laser ablation of materials

A Review of Simulation Methods of Laser Matter Interactions Focused on Nanosecond Laser Pulsed Systems

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