Which effect diminishes when injecting incoherent light into metamaterial?

💡 Explanation

The negative refractive index depends on constructive interference, because temporal or spatial incoherence disrupts the **phase matching**, resulting in a reduced or absent negative refractive index; therefore, A is correct, rather than enhanced harmonic generation because incoherent light inhibits nonlinear processes.

• Which consequence occurs when exposing titanium hydride to extreme temperature?
• Which outcome occurs when a nuclear reactor's moderator degrades?
• Which mechanism limits efficiency during rapid heating through Curie temperature transition in a ferromagnetic core?
• Which mechanism limits crystal growth during NaCl precipitation?
• Which outcome occurs in an elevator undergoing constant upwards acceleration?
• Which risk increases when an electron's wavefunction overlaps a nonsymmetrical potential well?