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← ScienceWhich optical effect degrades stimulated emission performance within a Xenon chloride excimer laser?
A)Spatial mode beating increases rapidly
B)Reduced gain medium coherence length✓
C)Chromatic wavefront aberrations dominate beam
D)Thermal lensing drastically exceeds output
💡 Explanation
Reduced coherence length degrades stimulated emission, because photons encounter varying refractive indices which cause dephasing. Therefore optical gain is reduced, rather than increased mode beating, because inhomogeneities dominate.
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