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← ScienceWhich consequence results when high-intensity laser passes through Kerr medium?
A)Self-focusing and filamentation occurs✓
B)Gain narrowing linewidth decreases
C)Stimulated Raman scattering decreases
D)Brillouin scattering threshold increases
💡 Explanation
Nonlinear refractive index changes cause self-focusing, intensifying the beam; therefore filament formation result from **optical Kerr effect interference**, rather than stimulated scattering changes, because the rapid index variations induce small scale beams to interfere.
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