10.6084/m9.figshare.1012387.v1
G M Nikolopoulos
G
M Nikolopoulos
P Lambropoulos
P
Lambropoulos
PSDs, bandwidths and coherence times, for fields with exponential and Gaussian correlations
IOP Publishing
2013
decorrelation
nature
fel
molecule
framework
Gaussian correlations
interaction
abstract
psd
role
experiment
coherence times
fluctuation
flash
dynamic
pulse
bandwidth
analysis
regime
decorrelated
model
Atomic Physics
Molecular Physics
2013-08-13 00:00:00
Dataset
https://iop.figshare.com/articles/dataset/_PSDs_bandwidths_and_coherence_times_for_fields_with_exponential_and_Gaussian_correlations/1012387
<p><b>Table 1.</b> PSDs, bandwidths and coherence times, for fields with exponential and Gaussian correlations.</p> <p><strong>Abstract</strong></p> <p>Motivated by recent experiments pertaining to the interaction of weak SASE-free-electron-laser (FEL) pulses with atoms and molecules, we investigate the conditions under which such interactions can be described in the framework of a simple phase-diffusion model with decorrelated atom–field dynamics. The nature of the fluctuations that are inevitably present in SASE-FEL pulses is shown to play a pivotal role in the success of the decorrelation. Our analysis is performed in connection with specific recent experimental results from FLASH in the soft x-ray regime.</p>