Frequency-resolved optical gating

Frequency-resolved optical gating (FROG) is a technique used to analyze and visualize short bursts of light, such as laser pulses, by breaking down their frequency components. It combines a sample pulse with a "gate" pulse, creating an overlapping pulse pattern. By measuring the resulting light intensity at different frequencies and times, researchers can reconstruct the original pulse's shape and timing. FROG is valuable in fields like telecommunications and spectroscopy, where understanding the behavior of light is crucial for developing advanced technologies, improving communication systems, and studying complex materials.