Abstract: An anisotropic single-crystal polarizing prism for separation of the non-polarized beam into two orthogonally-polarized beams with minimal optical losses. The prism has a tetrahedral shape and is formed by four base planes having a predetermined angular orientation with respect to each other so that one of the polarized beams exists the prism at a Brewster angle by being refracted on the third base plane, while the second beam is reflected from the third base plane with total internal reflection and exits the prism through the fourth base plane in the normal direction thereto. The prisms is manufactured by the method of the invention which involves specific procedures of orienting of crystal at preliminary calculated angles to the planes of prism faces, and cutting the aforementioned base planes with reference to the calculated angles.

Abstract: An anizotropic single-crystal polarizing prism for separation of a non-polarized beam into two orthogonally-polarized beams with minimal optical losses. The prism has a tetrahedral shape and is formed by four base planes having a predetermined angular orientation with respect to each other so that one of the polarized beams exists the prism at a Brewster angle by being refracted on the third base plane, while the second beam is reflected from the third base plane with total internal reflection and exits the prism through the fourth base plane in the normal direction thereto. The prisms is manufactured by the method of the invention which involves specific procedures of orienting of crystal at preliminary calculated angles to the planes of prism faces, and cutting the aforementioned base planes with reference to the calculated angles.

Abstract: A single-crystal polygonal polarization prism has at least two pairs of mutually parallel prism planes. The prism is characterized by the fact that the e-beam is reflected within the prism with even number of reflections, whereby after the exit from the prism the angular position of the e-beam does not depend on the wavelength. The o-beam is subjected to at least one reflection, and the angular position of o-beam also does not depend on the wavelength. The prism of the invention does not distort the cross sections of the beams and is characterized by minimal optical losses.