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← ScienceWhich outcome impairs medical Continuous Wave (CW) laser accuracy?
A)Speckle pattern generation, increased spot size✓
B)Increased thermal lensing within the mediums
C)Temporal pulse broadening dominating emission
D)Chromatic aberration altering focal distances
💡 Explanation
Speckle pattern generation blurs the focal point because the lack of perfect Coherence causes interference of the reflections leading to bright and dark spots. Therefore, the laser focus degrades; rather than a clean Gaussian spot if the laser was perfectly constructed.
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