直接レーザ書込みによる計算機合成ホログラムの特性

概要

論文の詳細を見る
The purpose of this research is to make computer generated holograms (CGH) in a short time and to reconstruct the image in its original place. This is desired when CGH is applied to the optical memory and computing. For this purpose, a direct laser recording system composed of He-Cd laser, optical setup and scanning device was constructed. This system enabled several kinds of optical devices such as the diffraction gratings to be recorded on the various kinds of materials. This fact made clear the efficiency of this system for recording fine patterns. Furthermore we considered that this system was appliable to make CGH and proved that double phase hologram (DPH) method proposed by C. K. Hsueh was the most suitable method for the laser direct recording of CGH. High contrast reconstructed image was obtained and the process of making CGH was considerably reduced by this laser direct recording method. As the result it becomes clear that this method has efficiency for making CGH. We shall apply this system to high density optical memory and optical computing.
湘南工科大学の論文
1988-03-26