Frequency-resolved Optical Gating Characterization of 4.5-fs Pulses

Accurate phase and amplitude characterization of sub-5-fs laser pulses, which became available a year ago, is essential for most spectroscopic applications. For such short pulses, spectral phase corrections must be carried out across the bandwidth of several hundreds of nanometers. Therefore, a comprehensive knowledge of phase distortions is invaluable for optimization of multistage compressors to obtain the ultimate spectral-limited pulses.

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