SBIR Phase I: Improved Holographics for Information Storage and Retrieval

本项目为一期小企业创新研究项目，旨在以光动力蛋白、细菌视紫红质（bR）为记录介质，开发、制造并测试一种用于海量信息存储的全息存储器。最终配置是一个面向页面的系统，具有合理的访问次数技术和较长的全息寿命。虽然bR已经显示出作为全息材料的潜力，但它的使用受到全息图寿命短的限制。如果bR系统的优势可以与更长的全息寿命和容量相结合，那么可以在比当前CD-ROM技术更紧凑的系统中实现大数据存储和快速信息检索技术。在这个第一阶段的项目中，提案人将研究通过将bR与液晶（LC）系统耦合来提高bR全息能力的可行性，液晶（LC）系统在全息图的写入中提供了增加的双折射。考虑到一个关键问题是折射率的实分量的大小，增加双折射可能是一个有用的方法。在编写全息图时，LC从各向同性变为有序色散，这一特性可以与bR的特性联系起来，以提高全息寿命。因此，如果第一阶段可以演示改进的bR全息，那么第二阶段的开发工作范围将通过紧凑但厚实的材料解决密集内存存储问题。本研究旨在发展具有快速检索能力的大型数据存储介质的创新技术。因此，在商业世界中有许多应用。可以想象，它可以用体积更小、容量更大、访问速度更快的批量存储设备取代目前使用的CD-ROM。这种设备在整个计算机环境中的使用是广泛的。＊＊＊

***9760996 Trantolo This Phase I Small Business Innovation Research project aims to develop, fabricate, and test a holographic memory for mass information storage using the photodynamic protein, bacteriorhodopsin (bR) as the recording medium. The ultimate configuration is a page-oriented system with reasonable access times technology and long holographic lifetimes. Although bR has shown potential as a holographic material, its use has been limited by the short lifetime of the hologram. If the advantages of a bR system could be coupled to longer holographic lifetimes and capacities, then technology for large data storage and rapid information retrieval could be realized in a system more compact than current CD-ROM technology. In this Phase I project, the proposer will investigate the feasibility of increasing bR holographic capability by coupling bR to a liquid crystal (LC) system which offers increased birefringence in the writing of the hologram. Given that a key issue is the magnitude of the real component of the refractive index, increasing the birefringence may be a useful approach. In writing the hologram, the LC's go from isotropic to an ordered dispersion, a property which can be linked to those of bR to improve holographic lifetime. Thus, if Phase I can demonstrate an improved bR holographic, the Phase II development workscope will address dense memory storage via a compact, yet thick, material. This research addresses the development of new and innovative techniques for large data storage media with rapid retrieval capability. As such there are many applications in the commercial world. It could conceivably replace the CD-ROM currently in use with smaller size, large capacity, more rapidly accessible, bulk storage devices. The use of such devices throughout the computer environment is widespread. ***