Related Experiment Video
Updated: Aug 13, 2026

Measurement of Coherence Decay in GaMnAs Using Femtosecond Four-wave Mixing
Published on: December 3, 2013
Second order autocorrelation of an XUV attosecond pulse train
L A A Nikolopoulos1, E P Benis, P Tzallas
1Department of Telecommunication Sciences and Technology, University of Peloponnisos, GR22100 Tripoli, Greece.
Abstract:
Temporal widths of an attosecond (asec) XUV radiation pulse train, formed by the superposition of higher order harmonics, have been recently determined utilizing a 2nd order autocorrelation measurement. An assessment of the validity of the approach, for the broadband XUV radiation of asec pulses, is implemented through ab initio calculations modeling the spectral and temporal response of the two-XUV-photon He ionization detector employed. The measured width of the asec bursts is discussed in terms of the spectral phases of the individual harmonics, as well as in terms of the spatially modulated temporal width of the radiation, and is found in reasonable agreement with the expected duration.
More Related Videos
Related Concept Videos
¹H NMR: Interpreting Distorted and Overlapping Signals
As Δν decreases and the signals move closer, the doublets appear increasingly distorted. The intensities of the inner lines increase at the cost of those of the outer lines as the signals are slanted or...
IR Spectrum Peak Splitting: Symmetric vs Asymmetric Vibrations
¹H NMR Signal Multiplicity: Splitting Patterns
NMR Spectrometers: Radiofrequency Pulses and Pulse Sequences
Atomic Emission Spectroscopy: Instrumentation
Sampling Theorem

