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← ScienceWhich outcome results from exceeding gain medium thresholds in excimer lasers?
A)Increased amplified spontaneous emission (ASE)✓
B)Enhanced pulse duration compression
C)Improved spatial mode purity
D)Reduced optical cavity losses
💡 Explanation
Amplified Spontaneous Emission increases when the laser's gain medium thresholds are exceeded, because a higher population inversion yields increased broadband photons created by spontaneous emission, rather than coherent lasing. therefore ASE is more intense, rather than cavity photons.
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