The diffractive optical elements in recent time have found sufficiently wide utilization and what is more the regions and volumes of their applications are constantly widened. In holographic optical elements ( HOE ) production processes ( production of diffraction gratings, mirrors, lenses, etc.) the important role is played by the light sensitive media, in which the interference pattern, created by the laser beams is directly registered. The demands that are applied to such media are rather rigid, especially under production of HOE with submicron sizes. The wide range of photo-induced phenomena exhibited by the chalcogenide vitreous semiconductors ( ChVS ),especially the photodoping 1 and photostimulated ChVS solubility changes 2 enable to use them in a quality of registering media suitable for HOE production.3'4
|