Isegoria

I was listening to the audiobook version of Daniel Suarez’s Influx, when the high-tech antagonists used dynamic pulse detonation (DPD) to take out attacking missiles, so I read up on the idea:

A short but intense laser pulse creates a ball of plasma, and a second laser pulse generates a supersonic shockwave within the plasma to generate a bright flash and a loud bang.

The Plasma Acoustic Shield System will eventually combine a dynamic pulse detonation laser with a high power speaker for hailing or warning, and a dazzler light source. PASS has already been demonstrated by the system’s makers, Stellar Photonics.

“It uses a programmed pattern of rapid plasma events to create a sort of wall of bright lights and reports (bangs) over the coverage area,” says Keith Braun of the US Army’s Advanced Energy Armaments Systems Division at Picatinny Arsenal in New Jersey, US, where the system is being tested.

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