Laser Ablation Propulsion and Its Applications in Space

Phipps, Claude

doi:10.1007/978-3-319-96845-2_8

Cited by 21 publications

(15 citation statements)

References 29 publications

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Section: Discussionmentioning

confidence: 95%

“…First, we note that parameters of the nanosecond UV laser pulses are favorable for thermal ablation that runs under a quasi-equilibrium energy transfer [2][3][4]. The thermal ablation is attributed to a variety of coupled phenomena [1][2][3][4]. For interpretation of the experimental data, we consider four groups of the phenomena: (a) laserplasma interactions including propagation through magnetized LPP; (b) laser-surface coupling including the effects attributed to reflection, penetration, and absorption; (c) transport effects that include transfer of absorbed laser energy through both liquid and solid phases; (d) other effects that include thermo-mechanical stresses; material removal from the surface, e. g., evaporation; melt hydrodynamics; and surface oxidation.…”

Section: Discussionmentioning

confidence: 99%

“…Laser ablation is a laser interaction with a solid surface by which laser radiation removes matter from the surface [1][2][3]. In that entire research field, ablation by nanosecond laser pulses has received the most significant attention because of a broad range of industrial applications to precisely micro-machine various materials [2,3]. One of the major challenges for advancing the nanosecond-pulse laser ablation and micro-machining is to optimally balance laser-surface coupling.…”

Section: Introductionmentioning

confidence: 99%

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Fundamental mechanisms of nanosecond-laser-ablation enhancement by an axial magnetic field

2019

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Steady magnetic field perpendicular to laser beam is widely used to improve rate and quality of laser ablation. Recently we reported a 69-fold enhancement of laser ablation of silicon by magnetic field parallel to laser beam. To understand the fundamental mechanisms of that phenomenon, multi-pulse magnetic-field-enhanced ablation of stainless steel, titanium alloy, and silicon was performed. The influence of the magnetic field significantly varies depending on the material: from 2.8-fold ablation enhancement on stainless-steel and silicon to no pronounced ablation modification on titanium alloy. Those results are discussed in terms of magnetized-plasma, magneto-absorption, skin-layer, and magnetic-field-influenced transport effects. Understanding of those mechanisms is crucial for advanced controlling of nanosecond laser-surface coupling to improve laser micromachining.

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Section: Discussionmentioning

confidence: 95%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Fundamental mechanisms of nanosecond-laser-ablation enhancement by an axial magnetic field

2019

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“…The ablated material serves as propellant material. This force can be used as thrust to either stabilize and correct the orbits of space vessels, such as satellites, or to decelerate space debris in order to clean the earth’s orbit [ 204 , 205 , 206 , 207 , 208 , 209 , 210 ]. Recently, it was shown that using ultra-short double pulses can give added value to this specific application.…”

Section: Applications Using Burst Pulsesmentioning

confidence: 99%

Review on Experimental and Theoretical Investigations of Ultra-Short Pulsed Laser Ablation of Metals with Burst Pulses

et al. 2021

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Laser processing with ultra-short double pulses has gained attraction since the beginning of the 2000s. In the last decade, pulse bursts consisting of multiple pulses with a delay of several 10 ns and less found their way into the area of micromachining of metals, opening up completely new process regimes and allowing an increase in the structuring rates and surface quality of machined samples. Several physical effects such as shielding or re-deposition of material have led to a new understanding of the related machining strategies and processing regimes. Results of both experimental and numerical investigations are placed into context for different time scales during laser processing. This review is dedicated to the fundamental physical phenomena taking place during burst processing and their respective effects on machining results of metals in the ultra-short pulse regime for delays ranging from several 100 fs to several microseconds. Furthermore, technical applications based on these effects are reviewed.

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“…Despite the development and research long history of PPTs (since the 1950s) [ 6 , 7 ] and laser propulsion (since the 1970s) [ 8 ], the problem of describing both the processes of light erosion and laser ablation by powerful radiation (with a radiation flux more than 10 6 W·cm −2 ) remains. Light induced ablation of polymers is characterized by a lot of approaches to describe this process (for example, [ 9 , 10 , 11 ]), but these models are based on studies of laser radiation exposure to the surface. There are also a significant number of studies about low-intensity UV/VUV radiation fluxes’ exposure on polymers [ 12 , 13 , 14 , 15 , 16 , 17 , 18 ], which does not lead to noticeable ablation and is aimed at modifying or degrading their surfaces.…”

Section: Introductionmentioning

confidence: 99%

Gas Dynamics Processes above the Polymers Surface under Irradiation with Broadband High-Brightness Radiation in the Vacuum Ultraviolet Spectrum Region

et al. 2022

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Obtaining new data on the gas-dynamic responses from the polymer samples (polytetrafluoroethylene, PTFE) irradiated by powerful VUV radiation from compressed plasma flows is in the focus of the present study. An erosion type magnetoplasma compressor (MPC), a type of plasma focus discharge, was used as a radiation source. The operating voltages of the MPC were between 15 and 25 kV, the maximum measured discharge current was 200 kA, and the radiation energy in the VUV range was ≈1–2 kJ. The VUV fluxes on the sample surface were high and equal to ≈1022–1024 photons cm−2·s−1. Double-exposure laser holographic interferometry and schlieren photography were used to diagnose and visualize the gas-dynamic structures. The spatial distribution of the parameters (temperature, pressure and concentrations of electrons and ions) was defined based on the assumption of local thermodynamic equilibrium. It has been demonstrated that the maximum temperature ranged from ≈ 10 to 15 kK in the plasma layer. The electron concentration was ≈ (0.7–1.6) × 1018 cm−3 in this region. The used techniques of optical diagnostics and procedures of result processing make it possible to obtain data on the dynamics of polymer ablation, which occurs when their surface is exposed to powerful energy fluxes (thermal, shock-wave, radiation, and other extreme loads).

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Laser Ablation Propulsion and Its Applications in Space

Cited by 21 publications

References 29 publications

Fundamental mechanisms of nanosecond-laser-ablation enhancement by an axial magnetic field

Fundamental mechanisms of nanosecond-laser-ablation enhancement by an axial magnetic field

Review on Experimental and Theoretical Investigations of Ultra-Short Pulsed Laser Ablation of Metals with Burst Pulses

Gas Dynamics Processes above the Polymers Surface under Irradiation with Broadband High-Brightness Radiation in the Vacuum Ultraviolet Spectrum Region

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