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Which consequence directly results when a pulsed laser exceeds the ablation threshold of a target material in Laser-Induced Breakdown Spectroscopy (LIBS)?

A)Plasma formation and atomic emission
B)Increased thermal conductivity of target
C)Increased specular reflection of laser
D)Stable resonant Raman scattering peaks

💡 Explanation

Plasma formation occurs due to dielectric breakdown. When energy exceeds threshold, it causes rapid ionization and plasma formation because of inverse Bremsstrahlung, therefore atomic emission is observed, rather than increased thermal conductivity or enhanced Raman.

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