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← ScienceWhich outcome occurs when a high-powered laser is pulsed through a lens?
A)Chromatic aberration temporarily increases linearly
B)Heat-induced refractive index gradients emerge✓
C)Stimulated Brillouin scattering instantly ceases
D)Self-phase modulation generates higher harmonics
💡 Explanation
Temperature rise causes thermal lensing because the changing refractive index defocuses the beam; therefore, refractive index gradients emerge rather than direct harmonic generation because phase modulation and scattering require particular crystalline conditions.
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