comparison of the dramatic differences in spectra
of EMP emission from a free-standing target
and one connected to the ground.
A major review paper entitled Laser produced electromagnetic pulses: generation, detection, and mitigation has just been published with co-authorship from OxCHEDS.
The paper is a multi-institutional, international review of the problems related to the creation, characterisation, and mitigation of the strong electromagnetic pulses (EMP) produced by the interaction of high-power, high-energy laser pulses with different types of solid target. The review includes new experimental data obtained independently at several international laboratories. The mechanisms of electromagnetic field generation are analysed and considered as a function of the intensity and the spectral range of emissions they produce.
Understanding the physical processes underlying EMP is the basis for developing techniques to mitigate the electromagnetic threat, and to harness electromagnetic emissions, which may have promising applications.