Light Storage in Atomic Coherences: New Protocols and Applications

下面的提案涉及光和量子化介质之间相干绝热相互作用的实现、研究和应用。特别是，我们致力于光存储在由电磁诱导透明(EIT)驱动的原子相干性中的应用。我们建议研究在主体晶体中由Pr掺杂驱动的原子相干中的二维信息(即图像)的存储。与气相相比，掺杂固体允许更长的存储时间和存储效率。此外，该媒体还提供了可伸缩性。我们计划将原子相干中的图像存储与动态退相干控制和反馈控制脉冲整形相结合，涉及进化算法。强大的技术相结合，使原子相干的存储时间和存储效率提高了数量级。首先，可行性研究支持这些期望。除了EIT，我们还提出了应用受激拉曼绝热通道(STIRAP)来驱动逻辑运算。这也可能为光学并行处理提供可能性。总而言之，这些项目旨在显著扩展光存储领域的最先进技术、光驱动逻辑的新概念，以及将强大的光学技术结合到新的应用中。

The following proposal deals with the implementation, investigation and application of coherent- adiabatic interactions between light and quantized media. In particular, we aim at applications of light storage in atomic coherences, driven by electromagnetically-induced transparency (EIT). We propose investigations on storage of two-dimensional information (i.e. images) in atomic coherences, driven in Praseodymium dopants in a host crystal. In contrast to the gas phase, doped solids permit much larger storage times and storage efficiencies. Moreover, the medium offers scalability. We plan to combine image storage in atomic coherences with dynamic decoherence control and feedback-controlled pulse shaping, involving evolutionary algorithms. Combination of the powerful techniques permits the enhancement of storage times and storage efficiencies in atomic coherences by orders of magnitude. First feasibility studies support these expectations. In addition to EIT, we also propose the application of stimulated Raman adiabatic passage (STIRAP) to drive logic operations. This may also provide possibilities for optical parallel processing. In summary, the projects aim at a significant extension of the state-of-the-art in light storage, novel concepts for optically-driven logics, and combination of powerful optical technologies towards novel applications.