Gallego Sergi, Ortuño Manuel F, Neipp Cristian, Fernández Elena, Beléndez Augusto, Pascual Inmaculada
Opt Express. 2007 Jul 23;15(15):9308-19. doi: 10.1364/oe.15.009308.
In order to use photopolymers in the recording of holographic memories, high physical thickness is required. This generates many problems associated with the attenuation of light in the recording due to Beer's law. One of the more significant disadvantages is the fact that there are differences between the physical thickness of the material and the optical thickness of the holograms recorded. The optical thickness characterizes the angular selectivity of the holograms and determines the separation between two consecutive holograms in angular peristrophic multiplexing. In this work we propose a new method to record many holograms multiplexed with similar diffraction efficiency values taking into account the different effective optical thickness of each hologram.
为了在全息存储器记录中使用光聚合物，需要较大的物理厚度。根据比尔定律，这会产生许多与记录过程中光衰减相关的问题。一个较为显著的缺点是，材料的物理厚度与所记录全息图的光学厚度之间存在差异。光学厚度表征全息图的角度选择性，并决定角向周向复用中两个连续全息图之间的间距。在这项工作中，我们提出了一种新方法，考虑到每个全息图不同的有效光学厚度，来记录许多具有相似衍射效率值的复用全息图。
