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Which risk increases when a high-powered laser engraving aluminum?

A)Increased surface plasmon resonance
B)Reduced ablation threshold fluence
C)Enhanced dielectric breakdown potential
D)Diminished thermal lens effect

💡 Explanation

Increased surface plasmon resonance becomes likely, because the laser’s energy couples with electron oscillations and amplifies the light field at the aluminum's surface leading to greater heating/damage. Therefore, the sample may melt, rather than cleanly ablate because lower resonance means less concentrated energy.

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