Which limit exists when using laser speckle interferometry?

💡 Explanation

Fringe visibility decreases in speckle interferometry because reduced temporal coherence causes phase variations across the interfering beams, therefore blurring the interference pattern, rather than affecting power, expansion, or oxidation directly.

• Which outcome occurs when exceeding the critical current density in type-II superconductor crystal?
• Which risk increases when a dielectric slab is rapidly inserted between the plates of a parallel plate capacitor within a microwave circuit?
• Which consequence results when extreme stellar density causes infinite spacetime curvature near an event horizon?
• Which consequence results from thermal stress fracturing road surfaces treated with de-icing NaCl?
• Which outcome arises when a rocket's acceleration simulates gravity?
• Which risk significantly increases when exceeding a pump's NPSHr?