I have know physicists. My tech background is in RF.
I know quite a bit about electromagnetic waves.
I taught those concepts for grins at an AFB a couple of summers at the behest of TSTC. Really enjoyed it.
I miss my old tech friends from my years in NM.
I lived many years just down the road a few miles from White Sands :-)
Lots of nice tech guys in that area.
Two more words (not really directed at you): Tsar Bomb. 100 megatons. Not the right type or bomb to just create an EMP effect, but so massive that if the EMP hype was true it would have shut down all of the USSR.