'METHOD AND DEVICE FOR CREATING A PULSED RADIATION SOURCE IN THE FIELD OF TERAHERTZ, AND APPLICATION IMPLEMENTING SUCH A METHOD'

摘要

The invention relates to a method for creating a terahertz source (4). To do this, a filament (5) is generated from a femtosecond laser beam (2). The filament (5) is a column of plasma located on the axis of propagation of the laser beam. The source (4) of terahertz radiation consists of all the point sections of the filament (5). This source emits terahertz radiation (6) according to an emission cone directed along the axis of propagation of the laser pulses (2). The terahertz source (4) can be placed near a target to be irradiated. The displacement is done by moving the laser beam (2) at the origin of the filament (5).