Luvetric pulse
A luvetric pulse was a type of wide-area blast a personnel phaser could be modified to emit.

In 2369, the crew of  were looking for Data and Crosis, a Borg drone, on a planet with naturally high EM interference in its magnetosphere. They had a 20 kilometer  search zone and the interference made it impossible to use sensors to locate Data. 

Captain Jean-Luc Picard suggested they could modify a phaser to send out a luvetric pulse. Such a pulse would have created a resonance fluctuation in Data's power cells. They could have then pinpointed the fluctuation with a tricorder. Geordi La Forge then pointed out that to be effective the pulse would have to be so powerful that it would destroy Data's positronic net in the process. ()
Energy
Technology