2006/11/02 by Eric R. Tkaczyk, Tkaczyk, Eric R., Sylvain Rivet +7
Biochemistry, Genetics and Molecular Biology · Physics and Astronomy · #Advanced Fiber Laser Technologies #Advanced Fluorescence Microscopy Techniques #FOS: Physical sciences #Laser-Matter Interactions and Applications #Optics (physics.optics)
paper · pdf · doi:10.48550/arxiv.physics/0611019
openalex publication_date 2006/11/02 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Through examining the product of the mathematical variance of intensity with respect to time and frequency, we arrive at a temporal characterization of laser pulses through parameters for pulse duration, group delay dispersion and temporal form. These statistics, which are sufficient to predict subsequent pulse behavior, are recoverable in a simple experiment, measuring the two-photon-induced photocurrents in three nonlinear diodes. With only two photodiodes, we demonstrate that pulse durations as low as several tens of femtoseconds can be easily measured in a single shot if the usual assumptions of pulse form and dispersion are made as in the more difficult autocorrelation setup.