Can an electric field reduce plasma shielding in ns laser ablation on metals?

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In summary, the conversation discussed the possibility of reducing plasma shielding during ns laser ablation on metals by applying an electric field, and inquired about the strength of the field needed. The expert mentioned a paper on fast laser ablation bias, but noted that an electric field may not be effective as the cloud is mostly neutral in charge. A water spray was suggested as an alternative solution.
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mcodesmart
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I am just curious if it is possible to reduce the plasma shielding effect during ns laser ablation on metals by applying an electric field across the sample, and if so, how strong the field needs to be.

Also, any experiments or papers you know.. i searched but could not find the right keywords..
 
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  • #3
Unfortunatly the cloud is nearl neutral charge so an electric field will move the stuff around it will not clear it. A simple water spray does a nice job though.
 

FAQ: Can an electric field reduce plasma shielding in ns laser ablation on metals?

What is laser ablation in the ns-regime?

Laser ablation in the ns-regime is a process in which a high-powered laser is used to remove material from a solid surface. This is typically done in the nanosecond (ns) time scale, meaning the laser pulse is only a few nanoseconds long.

How does laser ablation in the ns-regime work?

When a high-powered laser is directed at a solid surface, the intense energy causes the material to rapidly heat up and vaporize. This creates a plasma plume, which expands and carries away the ablated material.

What materials can be ablated using laser ablation in the ns-regime?

Laser ablation in the ns-regime can be used on a wide range of materials, including metals, ceramics, polymers, and biological materials. The material must be able to withstand the high temperatures and pressures created by the laser pulse.

What are the applications of laser ablation in the ns-regime?

Laser ablation in the ns-regime has many practical applications, such as in microfabrication, surface cleaning, and material analysis. It is also commonly used in the fields of medicine, chemistry, and geology for various research and diagnostic purposes.

What are the advantages of using laser ablation in the ns-regime?

Compared to other methods of material removal, laser ablation in the ns-regime offers several advantages. It is precise, non-contact, and can be used on a wide variety of materials. It also allows for high throughput and can be easily automated for large-scale production.

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