Measuring the properties of ultrafast pulses from X-ray lasers is a major challenge for physicists. Research published in the scientific journalExpress Opticals Describes a method that can help you with this task.
These pulses reveal how the atoms move at femtosecond intervals – the equivalent of a quadrillion second. Although the determination of the maximum strength – or amplitude – of a pulse is accurate, it is often unclear when it reaches its maximum degree, or “phase”.
In the new study, scientists from the US Stanford Linear Acceleration Center (SLAC) and Germany’s Electronic Synchrotron (DESY) used machine learning and trained neural networks to analyze the pulse and reveal these hidden subcomponents, which are divided into “real” and “phantom.”