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← ScienceWhich mechanism dominates when a high-power laser ablates steel?
A)Inverse Bremsstrahlung absorption heats plasma✓
B)Raman scattering reduces laser energy
C)Rayleigh scattering diffuses pump photons
D)Compton scattering shifts wavelengths inversely
💡 Explanation
Material ablated by high-power lasers forms plasma; absorption, not reflection, needs explaining. Inverse Bremsstrahlung absorption transfers laser energy to the plasma via electron collisions, heating it further. Therefore, plasma heating is dominant, rather than other less energetic scattering processes.
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