期刊
JOURNAL OF LUMINESCENCE
卷 130, 期 9, 页码 1603-1609出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jlumin.2009.12.020
关键词
Lithium niobate; Spectral hole burning; Optical decoherence; Spectral diffusion
类别
资金
- Direct For Mathematical & Physical Scien
- Division Of Physics [0903937] Funding Source: National Science Foundation
Developing new resonant optical materials for spatial-spectral holography and quantum information applications requires detailed knowledge of the decoherence and population relaxation dynamics for the quantum states involved in the optical transitions, motivating the need for fundamental material studies. We report recent progress in studying these properties in erbium-doped lithium niobate at liquid helium temperatures. The influence of temperature, applied magnetic fields, measurement timescale, and dopant concentration were probed using photon echo spectroscopy and time-resolved spectral hole burning on the 1532 nm transition of Er3+:LiNbO3. Effects of spectral diffusion due to interactions between Er3+ ions and between the Er3+ ion and Li-7 and Nb-93 nuclear spins in the host lattice were observed. In addition, long-lived persistent spectral storage of seconds to minutes was observed due to non-equilibrium population redistribution among superhyperfine states. (c) 2009 Elsevier B.V. All rights reserved.
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