Plasmatic filter
A plasmatic filter was an internal and external defensive measure against plasma threats aboard Starfleet starships.

In 2256, when the  was faced with an intensely bright signal put off by the Klingon Beacon of Kahless, over one billion lumens per square meter, Captain Philippa Georgiou ordered plasmatic filters online, though they had little effect. ()

See also
 Plasmatic energy
Shield technology