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重铬酸盐明胶(简称铬胶)作为全息记录介质,具有高衍射效率、高分辨率(6000线/毫米)、高信噪比和低噪音等特性。最近十几年来广泛引起人们的注意。铬胶全息干板不仅可以用于氦镉激光(441nm)、氩激光(488nm,514nm),而且经过光谱增感后,还可以用于氦氖激光(633nm)。用铬胶全息干板可以制做光栅、光学透镜、滤波器等多种全息光学元件,而且体小质轻、形状可变,在空间技术、军事领域特别受到重视。本文介绍了铬胶作为全息记录介质在国外的发展情况;铬胶全息干板的全息特性、制做、处理程序以及影响因素,此外还介绍了铬胶全息干板在全息领域中的各种应用。
Dichromated gelatin (referred to as chrome glue) as a holographic recording medium, with high diffraction efficiency, high resolution (6000 lines / mm), high signal to noise ratio and low noise and other characteristics. The past decade or so widely aroused people’s attention. The holographic chrome plate can be used not only for helium-cadmium laser (441nm), argon laser (488nm, 514nm), but also for helium-neon laser (633nm) after spectral sensitization. Chromium holographic plate can be made with holographic chrome grating, optical lenses, filters and other holographic optical components, and the body is small and light, variable shape, in space technology, military special attention. In this paper, the development of holographic recording medium in foreign countries is introduced. The holographic properties, preparation, processing procedures and influencing factors of holographic chiral holographic plate are introduced. In addition, various applications of holographic holographic plate in holography .