Resonance burst
From Memory Alpha, the free Star Trek reference
A resonance burst is a type of energetic discharge that can be produced by a starship's navigational deflector or warp field.
In the year 2293, the crew of the Federation starship USS Enterprise-B emitted a resonance burst from the ship's main deflector to break free from the gravimetric distortions of an energy ribbon. The function required the ship's deflector relays manually modified, resulting in an effect similar to that of an antimatter discharge. The resonance burst took the form of a forced energy beam. (Star Trek Generations)
Lost in the Delta Quadrant, the crew of the USS Voyager created a resonance burst to defend the ship against attacking Bothans in 2372. This time utilizing the ship's warp field, the procedure required the crew to sequence plasma constriction to a specific formula and create a burst high enough in temperature to disable the aliens, but prevent the irradiation of the entire ship. The burst was set at 3 million Kelvin, sufficiently freeing the crew from a telepathic attack. (VOY: "Persistence of Vision")
