초록 ▼

A generator of a TEO mode wave beam, particularly adapted for confining plasmas, comprises a laser device for generating an electromagnetic wave having at least a TMO mode component. The TMO mode component is filtered by parallel sided plates or refractive surfaces disposed at the Brewster angle for

A generator of a TEO mode wave beam, particularly adapted for confining plasmas, comprises a laser device for generating an electromagnetic wave having at least a TMO mode component. The TMO mode component is filtered by parallel sided plates or refractive surfaces disposed at the Brewster angle for the TMO component to derive an intermediate wave beam. A TMO-TEO mode converter shifts the TMO mode intermediate wave polarization vector by an angle of p

대표청구항 ▼

An electromagnetic cavity resonator for sustaining TMO and TEO mode wave components, said cavity resonator being adapted for substantially increasing the TEO mode components, decreasing the TMO mode components and projecting plasma confining TEO mode components on to a plasmatized material, said ele

An electromagnetic cavity resonator for sustaining TMO and TEO mode wave components, said cavity resonator being adapted for substantially increasing the TEO mode components, decreasing the TMO mode components and projecting plasma confining TEO mode components on to a plasmatized material, said electromagnetic cavity resonator comprising: a first electromagnetic wave semi-reflecting reflector forming a first outer boundary of said cavity resonator; a second electromagnetic wave reflector forming a second outer boundary of said cavity resonator and facing the first reflector, said second reflector being an outer surface of a transparent material having an index of refraction n; said transparent material including a conical member of revolution having an axial location integral with the second reflector on the side of the second reflector facing the first reflector, said conical member having an angular half aperture i equal to the complement of the Brewster\s angle to p2, so that tan (p2-1)=1/n, whereby said second reflector and member act simultaneously as a boundary of the cavity resonator and as a filter for removing TMO mode components; an active lasing medium located between the first and second reflectors so that TMO mode components, at a given wavelength, propagate through the second reflector; a TMO－TMm mode coverter means for rotating the polarization direction of the TMO mode components propagating through the second reflector by an angle of p2 to derive TEO mode components; and means for focusing said TEO mode components on to a material to be plasmatized.