Requirements to impurity activated solids as materials for optical data storage and processing

Karl Rebane

doi:10.1117/12.639053

13 June 2006 Requirements to impurity activated solids as materials for optical data storage and processing

Karl Rebane

Proceedings Volume 5946, Optical Materials and Applications; 59460S (2006) https://doi.org/10.1117/12.639053
Event: Optical Materials and Applications, 2005, Tartu, Estonia

Abstract

Persistent spectral hole burning (PSHB) has remarkable applications in optical data storage and processing, including space-frequency and space-time domain holographies. Experiments have proven practically everything predicted and proposed by theory. The bottleneck between laboratory experiments and commercial applications is the need in low (liquid He) temperatures, as the main parameter of the data storage efficiency-the ratio between the inhomogeneous and homogeneous zero-phonon line (ZPL) widths α(T) = Γ_inh/Γ_hom(T)-- decreases owing to the rapid increase of Γ_hom(T) with temperature. A few optical and Mossbauer ZPLs are narrow even at RT, but they have usually also narrow Γ_inh. It is proposed to enlarge Γ_inh by making use of the Doppler effect. Two possible manifestations of the Doppler effect in the Universe are also discussed.

Citation Download Citation

Karl Rebane "Requirements to impurity activated solids as materials for optical data storage and processing", Proc. SPIE 5946, Optical Materials and Applications, 59460S (13 June 2006); https://doi.org/10.1117/12.639053

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