Characteristics of plasma shock waves in pulsed laser deposition process

Li, Zhenghe; Zhang, D. M.; Yu, Benhai; Guan, Li

doi:10.1051/epjap:2004181

Cited by 7 publications

(3 citation statements)

References 18 publications

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“…Most of the applications of laser-induced shock waves include laser shock peening (Ding and Ye, 2006), which is a versatile tool used also for microstructure tailoring (Kalentics et al, 2019). Moreover, laser-induced shock waves were reported for film deposition methods or adhesion tests (Li et al 2004), but also for foil forming (Nagarajan et al, 2013) and laser induced breakdown spectroscopy (Campanella et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Novel strategy for quality improvement of up-facing inclined surfaces of LPBF parts by combining laser-induced shock waves and in situ laser remelting

Metelková

Ordnung

Kinds

et al. 2021

Journal of Materials Processing Technology

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Section: Introductionmentioning

confidence: 99%

Novel strategy for quality improvement of up-facing inclined surfaces of LPBF parts by combining laser-induced shock waves and in situ laser remelting

Metelková

Ordnung

Kinds

et al. 2021

Journal of Materials Processing Technology

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“…The particular characteristics of a blast wave is that it is followed by a wind of negative pressure, which induces an attractive force back towards the origin of the shock. Typical blast waves occur after the detonation of trinitrotoluene [3,4], nuclear fission [5], break of a pressurized container [6] or heating caused by a focused pulsed laser [7]. The sudden release of energy causes a rapid expansion, which in a three dimensional space is analogous to a spherical piston [8] and produces a compression wave in the ambient gas.…”

Section: Introductionmentioning

confidence: 99%

Blast waves in a paraxial fluid of light

Abuzarli,

Bienaimé,

Giacobino

et al. 2021

Preprint

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We study experimentally blast wave dynamics on a weakly interacting fluid of light. The fluid density and velocity are measured in 1D and 2D geometries. Using a state equation arising from the analogy between optical propagation in the paraxial approximation and the hydrodynamic Euler's equation, we access the fluid hydrostatic and dynamic pressure. In the 2D configuration, we observe a negative differential hydrostatic pressure after the fast expansion of a localized over-density, which is a typical signature of a blast wave for compressible gases. Our experimental results are compared to the Friedlander waveform hydrodynamical model [1]. Velocity measurements are presented in 1D and 2D configurations and compared to the local speed of sound, to identify supersonic region of the fluid. Our findings show an unprecedented control over hydrodynamic quantities in a paraxial fluid of light.

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“…The particular characteristic of a blast wave is that it is followed by a wind of negative pressure, which induces an attractive force back towards the origin of the shock. Typical blast waves occur after the detonation of trinitrotoluene [2,3], nuclear fission [4], break of a pressurized container [5] or heating caused by a focused pulsed laser [6]. The sudden release of energy causes a rapid expansion, which in a three-dimensional space is analogous to a spherical piston [7] and produces a compression wave in the ambient gas.…”

mentioning

confidence: 99%

Blast waves in a paraxial fluid of light ^(a)

Abuzarli

Bienaimé

Giacobino

et al. 2021

EPL

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We study experimentally blast wave dynamics on a weakly interacting fluid of light. The fluid density and velocity are measured in 1D and 2D geometries. Using a state equation arising from the analogy between optical propagation in the paraxial approximation and the hydrodynamic Euler's equation, we access the fluid hydrostatic and dynamic pressure. In the 2D configuration, we observe a negative differential hydrostatic pressure after the fast expansion of a localized over-density, which is a typical signature of a blast wave for compressible gases. Our experimental results are compared to the Friedlander waveform hydrodynamical model (Friedlander F. G., Proc. R. Soc. A: Math. Phys. Sci., 186 (1946) 322). Velocity measurements are presented in 1D and 2D configurations and compared to the local speed of sound, to identify the supersonic region of the fluid. Our findings show an unprecedented control over hydrodynamic quantities in a paraxial fluid of light.

show abstract

Characteristics of plasma shock waves in pulsed laser deposition process

Cited by 7 publications

References 18 publications

Novel strategy for quality improvement of up-facing inclined surfaces of LPBF parts by combining laser-induced shock waves and in situ laser remelting

Novel strategy for quality improvement of up-facing inclined surfaces of LPBF parts by combining laser-induced shock waves and in situ laser remelting

Blast waves in a paraxial fluid of light

Blast waves in a paraxial fluid of light ^(a)

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Characteristics of plasma shock waves in pulsed laser deposition process

Cited by 7 publications

References 18 publications

Novel strategy for quality improvement of up-facing inclined surfaces of LPBF parts by combining laser-induced shock waves and in situ laser remelting

Novel strategy for quality improvement of up-facing inclined surfaces of LPBF parts by combining laser-induced shock waves and in situ laser remelting

Blast waves in a paraxial fluid of light

Blast waves in a paraxial fluid of light (a)

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Blast waves in a paraxial fluid of light ^(a)