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← ScienceWhich effect arises when a pulsed laser's irradiance exceeds material limits?
A)Optical breakdown plasma formation✓
B)Enhanced Fresnel diffraction observed
C)Stimulated Raman scattering increases
D)Photonic band-gap shifts occur
💡 Explanation
Plasma forms because rapid ionization via avalanche ionization occurs at intensities exceeding threshold; therefore, optical breakdown happens rather than other options because energy density exceeds dielectric strength, causing rapid material change.
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