Characterization of laser ablation of carbon-doped glycerol at different laser wavelengths

Zhang, Zheng; Zhang, S. Q.; Tian, Liang; Tang, Weichong; Xiao, Ke; Liang, Wenfei; Gao, Hua; Xing, Jun; Wu, Xiaowen; Zhang, Z. L.

doi:10.1007/s00339-016-0586-6

Cited by 8 publications

(5 citation statements)

References 23 publications

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“…Besides, it was reported that the C m increased with the decrease in laser wavelength under the same laser intensity and pulse width [24], indicating the shorter laser wavelength was more advantageous for the momentum coupling of laser to the target. In contrast with the Phipps theory, Zheng et al reported that the C m of 1064 nm was higher than that of 532 nm for bulk liquid ablation [13]. They analyzed that the ablation conditions were different and confinement ablation occurring in bulk liquid increased the divergence.…”

Section: Introductionmentioning

confidence: 93%

“…In the past, numerous investigations have focused on the thrust generation of laser ablation [10][11][12][13]. As a crucial index for evaluating the thrust performance, the impulse coupling coefficient C m is defined as the ratio of impulse to laser energy.…”

Section: Introductionmentioning

confidence: 99%

“…Thereby, it is used to describe the energy utilization efficiency of converting laser energy into the target momentum. Previous researches have shown that the impulse characteristics depended on laser parameters (wavelength, energy, pulse width, and spot size), ambient conditions (gas composition and pressure), target properties, etc [12][13][14][15][16]. Among these factors, laser wavelength has a significant effect on lasertarget coupling, ablation rate, penetration depth, plasma ignition threshold, and plasma absorption [17].…”

Section: Introductionmentioning

confidence: 99%

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Effect of laser wavelength on ablation propulsion and plasma characteristics with acrylonitrile butadiene styrene target

Xu,

Yang,

et al. 2024

J. Phys. D: Appl. Phys.

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Propulsion performance produced by laser ablation of polymer made of acrylonitrile butadiene styrene (ABS) is experimentally investigated using the first, second, and third harmonics of a Nd: YAG laser. A ballistic pendulum is employed to assess the impulse and coupling coefficient for laser propulsion application. Fast photography, target ablation, and optical emission spectroscopy are proposed to analyze the energy coupling characteristic. The impulse and coupling coefficient under different pressures are demonstrated to depend on the target ablation and plasma properties which are relevant to laser wavelength. As the laser wavelength decreases, the crater depth and ablation mass are enhanced. Meanwhile, the plasma plume separates at atmospheric pressure and its length extends continuously in the low-pressure range. As a result, plasma including more ejected particles with higher velocity contributes to obtaining excellent impulse and coupling coefficient. In addition, the decreased electron density and temperature indicate higher collision frequency and photoionization dominate rather than inverse bremsstrahlung absorption at shorter laser wavelengths. This work provides a better understanding of the energy conversion mechanism and a reference for improving propulsion performance.

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Section: Introductionmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effect of laser wavelength on ablation propulsion and plasma characteristics with acrylonitrile butadiene styrene target

Xu,

Yang,

et al. 2024

J. Phys. D: Appl. Phys.

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“…The content of C of paint microspheres in Figure 15d decreases sharply, while their content of oxygen increases sharply. They were produced by ablation or ionization [40,41]. Nano-spheres in Figure 15f were formed by condensing gaseous molecules formed by the paint decomposition and combustion on the surface of silicon wafers.…”

Section: Characterization Of Particles Collected On Silicon Wafersmentioning

confidence: 99%

Effect of Defocused Nanosecond Laser Paint Removal on Mild Steel Substrate in Ambient Atmosphere

et al. 2021

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The obvious advantages of laser paint removal technology make it a viable alternative to traditional paint removal methods. Infrared nanosecond laser was used to remove paint from car body. The microstructure, composition, surface roughness, hardness and ablative products of the samples were analyzed. The effect of the process combination of laser defocus distance and ambient atmosphere (ambient air, compressed air and inert atmosphere) on the substrate damage and the paint removal effectiveness was explored, and the related mechanism was discussed. Defocus not only changed the fluence of laser spot but also increased the spot diameter. The effect of defocused laser paint removal on the paint and substrate was caused by the superposition of these two factors. The results show that the laser with defocus distance of +4 mm effectively removed the paint in inert atmosphere and has the least adverse effect on the substrate. The content of C element and organic components on the substrate surface was the lowest, and its surface roughness and hardness was very close to the uncoated substrate. Focused laser paint removal in ambient air caused the most serious damage to the substrate. Its surface microhardness increased by 11 HV, and the influence depth reached 37 µm. The mechanism of laser paint removal without auxiliary gas is the superposition of laser plasma effect, laser gasification effect and thermal stress effect. In open atmosphere (compressed air and inert atmosphere), the mechanism of laser paint removal is laser gasification effect and thermal stress effect. This research can provide practical references and theoretical basis for the large-scale industrial application of low/non-damage laser paint removal technology.

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“…The interaction between the laser pulse-induced plasma (or shock wave) and the material is the physical mechanism for the performance of pulsed laser ablation [ 21 , 22 , 23 , 24 , 34 ]. To further improve the ablation performance of pulsed lasers for liquid propellants, efforts have been made to synergistically optimize laser ablation performance by coupling laser energy into energetic propellants [ 35 , 36 , 37 , 38 , 39 ]. However, considering the solubility and oxidation resistance of laser absorbers, laser energy deposition of energetic liquid propellants at the micrometer scale is still difficult to achieve.…”

Section: Introductionmentioning

confidence: 99%

Transmissive Mode Laser Micro-Ablation Performance of Ammonium Dinitramide-Based Liquid Propellant for Laser Micro-Thruster

Zheng

Mao

et al. 2023

Micromachines

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The transmissive mode laser micro-ablation performance of near-infrared (NIR) dye-optimized ammonium dinitramide (ADN)-based liquid propellant was investigated in laser plasma propulsion using a pulse YAG laser with 5 ns pulse width and 1064 nm wavelength. Miniature fiber optic near-infrared spectrometer, differential scanning calorimeter (DSC) and high-speed camera were used to study laser energy deposition, thermal analysis of ADN-based liquid propellants and the flow field evolution process, respectively. Experimental results indicate that two important factors, laser energy deposition efficiency and heat release from energetic liquid propellants, obviously affect the ablation performance. The results showed that the best ablation effect of 0.4 mL ADN solution dissolved in 0.6 mL dye solution (40%-AAD) liquid propellant was obtained with the ADN liquid propellant content increasing in the combustion chamber. Furthermore, adding 2% ammonium perchlorate (AP) solid powder gave rise to variations in the ablation volume and energetic properties of propellants, which enhanced the propellant enthalpy variable and burn rate. Based on the AP optimized laser ablation, the optimal single-pulse impulse (I)~9.8 μN·s, specific impulse (Isp)~234.9 s, impulse coupling coefficient (Cm)~62.43 dyne/W and energy factor (η)~71.2% were obtained in 200 µm scale combustion chamber. This work would enable further improvements in the small volume and high integration of liquid propellant laser micro-thruster.

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Characterization of laser ablation of carbon-doped glycerol at different laser wavelengths

Cited by 8 publications

References 23 publications

Effect of laser wavelength on ablation propulsion and plasma characteristics with acrylonitrile butadiene styrene target

Effect of laser wavelength on ablation propulsion and plasma characteristics with acrylonitrile butadiene styrene target

Effect of Defocused Nanosecond Laser Paint Removal on Mild Steel Substrate in Ambient Atmosphere

Transmissive Mode Laser Micro-Ablation Performance of Ammonium Dinitramide-Based Liquid Propellant for Laser Micro-Thruster

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