Feasibility of Spectral Holeburning Memories and Processors for Space-Based Applications
Final rept. 1 Apr 1999-30 Sep 2002
MASSACHUSETTS INST OF TECH CAMBRIDGE RESEARCH LAB OF ELECTRONICS
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The purpose of this research was to explore the feasibility of using spectral hole-burning SHB memories for caching and processing large amounts of high-speed imagery data that are expected in future space-based surveillance systems. The research was to consist of three parts. First, the power of spectral holeburning for image-based storage and processing was to be illustrated by performing several demonstration experiments, using Raman excited spin coherence RESC. Second, the properties of Raman excited spin coherences were to be used to increase the operating temperature of spectral holeburning materials. Third, long term storage of very high volume of optical data was to be demonstrated via frequency domain spectral holeburning in an organic dye embedded in a host of PMMA. In pursuing application of RESC, we have demonstrated that nitrogen-vacancy color centers in diamond is a viable medium for SHB memory. Furthermore, we have demonstrated, for the first time in a solid, the slowing and halting of light pulses in a crystal of PrYSO. This effect has spawned a wide range of activities in the research community, and has a range of application including optical data buffering and high- fidelity quantum memory. For high volume storage systems, it became clear early on that the objectives of this project could be better met by simple variations of the tasks originally envisioned.