Maryland's Defense Patent Database

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Underwater laser-guided discharge

Patent image
NRL

Methods for producing a laser-guided underwater electrical discharge are provided. One or more electrodes defining a desired electrical discharge path are situated in a body of water and are attached to an external electrical power supply. A high-powered, intense laser beam is fired into the water. The laser beam forms an optical filament in the water, which in turn forms an ionized channel having a much greater conductivity than the surrounding water. An external power supply drives an electrical discharge along the path of the ionized channel due to its greater conductivity.

Inventors: 
Jones, Theodore G.; Ting, Antonio C.; Gordon, Daniel F.
Patent Number: 
Technical domain: 
Optics
FIle Date: 
2011-11-10
Grant Date: 
2015-01-27
Grant time: 
1,174 days
Grant time percentile rank: 
21
Claim count percentile rank: 
5
Citations percentile rank: 
1
'Cited by' percentile rank: 
1
Assignee: 
US NAVY