Investigation of silver plasma and surface morphology from a nanosecond laser ablation

Khaleeq-ur-Rahman, M.; Butt, M. Z.; Mubeen, Ishrat; Rafique, Muhammad

doi:10.1016/j.matchemphys.2008.11.013

Cited by 6 publications

(3 citation statements)

References 13 publications

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“…The craters are due to strong mass evaporation at particular sites [ 40 ]. These craters are produced due to hydrodynamic sputtering, which involves the splashing of transient molten material caused by the recoil pressure exerted by the plasma plume on the melted pool [ 41 ]. Non-uniformities in Cu surface in the form of inhomogeneities, voids and oxides formation results into non-uniform preferred absorption of laser radiation at particular sites that cause craters formation with multiple ablative layers [ 42 ].…”

Section: Discussionmentioning

confidence: 99%

Laser-assisted plasma formation and ablation of Cu in a controlled environment

Bashir,

Dawood,

Hayat

et al. 2023

Heliyon

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Section: Discussionmentioning

confidence: 99%

Laser-assisted plasma formation and ablation of Cu in a controlled environment

Bashir,

Dawood,

Hayat

et al. 2023

Heliyon

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“…Optical techniques consist of some source of light to probe plasma plume and then record images with CCD (charged coupled devices) cameras [12,13]. In a previous study, the silver plasma is optically investigated using CCD camera and dynamics of silver plasma plume are found to be different in air and vacuum [14]. Electrical diagnostic tools include sensors and probes like Langmuir probe, Magnetic Field Probes etc [15].…”

Section: Introductionmentioning

confidence: 99%

Collective behavior of silver plasma during pulsed laser ablation

et al. 2015

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The present work reports an electrical investigation of silver plasma using a self-fabricated Langmuir probe in air and under a low vacuum (~10 -3 torr). A silver target was irradiated with a Q-switched Nd:YAG laser with the wavelength 1.064 µm, energy 10 mJ, pulse duration 9-14 ns and power 1.1 MW. The collective behavior of a silver plasma plume is studied using a Langmuir probe as an electrical diagnostic technique. By applying different positive and negative voltages to the probe, the respective signals are collected on a four channels digital storage oscilloscope having a frequency of 500 MHz. An I-V curve helps to measure electron temperature and electron density directly and plasma frequency, response time, Debye length and number of particles in 'Debye's sphere' indirectly using the theory of Langmuir probe and mathematical formulas. The floating potential is measured as negative for laser induced silver plasma in air and vacuum, following the theory of plasma.

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“…The details improving the resistance, weathering and heat of experimentation using laser system effects are ageing and extends the life of PVC products. Lead published somewhere else [24]. compounds are widely used elements as stabilizers Figure 1 shows a schematic diagram of the in polymers, include the applications in PVC pipes experimental setup.…”

mentioning

confidence: 99%

Surface modification of polyvinylchloride by high accelerated lead ions

Dildar

Ali

Saleem

et al. 2020

JPIChE

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This research work presents a comparative study for morphological effects of high accelerated and non-accelerated lead ions on polymers. The ions are produced using lead target by high powered pulsed Nd: YAG laser with wavelength of 1.064 µm, energy of 10 mJ, pulse duration of 12 ns, and power of 1.1 MW, at low pressure of ~10-3 torr. The acceleration voltage of 500 V is used to accelerate Lead ions on polyvinylchloride (PVC). The PVC samples are also irradiated without applying any potential, just to have a comparison of both types of irradiation. The samples were irradiated for 300 shots for each sample. The morphological changes were observed using Transmission optical microscope (Motic DMB series). The results showed the morphological changes in polymeric samples for accelerating potential of 500 V and 0 V. Long chain formation of laser accelerated lead ions is observed at 500 V as compared to the 0 V. The ion induced dragging effects are shown for 0 V which depend upon the energy of lead ions and also on the properties of the polymeric sample.

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Investigation of silver plasma and surface morphology from a nanosecond laser ablation

Cited by 6 publications

References 13 publications

Laser-assisted plasma formation and ablation of Cu in a controlled environment

Laser-assisted plasma formation and ablation of Cu in a controlled environment

Collective behavior of silver plasma during pulsed laser ablation

Surface modification of polyvinylchloride by high accelerated lead ions

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