Wave mode converter
OwnerGeorges R. P. Marieinventor
Life of this patent
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Abstract
Mode converter for electromagnetic, light or infrared waves. This mode converter converts particle non-confining modes to particle confining modes. In a confining mode wave beam the phase of the wave with respect to time at a point of the beam having a given azimuth with respect to the beam axis is proportional to this azimuth. Two types of mode converter are disclosed. In the first type, the wave passes through a block of transparent isotropic material the thickness of which is proportional to the azimuth around the beam axis. In the second type, the converter is formed with triangular or sectoral plates of birefringent material and in each plate the slow and fast axes are given an adequate orientation.
Claims13
A wave mode converter for converting an electromagnetic, light and infrared wave into an outgoing wave having a mode confining the particles of a plasma from a target material, comprising means for converting said incoming wave into a circular polarized wave beam, means for phase shifting with respect to time at any given point of the beam said circular polarized wave beam proportionally to the azimuth of said given point around the axis of propagation of the beam, means for focusing the phase shifted outgoing wave beam on to said target material and a generator of a d.c. magnetic field directed along said outgoing beam.
Dependencies are inferred from the claim text.