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Photonics Dictionary

ablation threshold

The ablation threshold refers to the minimum amount of energy, such as laser energy or intense radiation, required to remove material from a surface through ablation. Ablation itself is the process where material is removed from the surface of a solid or liquid due to the absorption of energy, typically from a laser or other high-energy source. Below the ablation threshold, the energy absorbed by the material is not sufficient to cause removal, whereas exceeding this threshold results in material being ablated from the surface. Therefore, the ablation threshold is a critical parameter in laser machining, surgery, and other processes where precise material removal is necessary.

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