In this work a light beam composed of a series of periodically repeated pulses with a Lorentzian profile is studied by the use of a photon-counting multichannel analyzer and by the measurement of <i>n</i><sup>(2)</sup>(<i>T</i><sub><i>i</i></sub>) (<i>i</i> = 1, 2, ..., <i>K</i>). The error in the determination of the width of the pulses is studied with the use of both methods and the results are compared.
F. González, "Pulse Width Determination by Measuring the Normalized Second-Order Factorial Moment n(2)(T)," Appl. Spectrosc. 40, 355-357 (1986)