Abstract
Spin decoupling and line narrowing are observed for the first time in an optical transition, 3H4 ↔ 1D2 of Pr3+. in LaF3 at 2°K, using optical FID. The 19F nuclei, when irradiated by an appropriate rf field, undergo forced precession about an effective field at the magic angle in the rotating frame. The fluctuating 19F–19F dipolar interaction is thereby quenched and the optical linewidth drops from ~10 to ~2 kHz, as predicted in a theory of spin diffusion.
Work supported in part by the U.S. Office of Naval Research. Published in Physical Review Letters 43, 1868 (1979).
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© 1981 Springer-Verlag Berlin Heidelberg
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Rand, S.C., Wokaun, A., Devoe, R.G., Brewer, R.G. (1981). Magic Angle Line Narrowing in Optical Spectroscopy. In: Guimaraes, W.O.N., Lin, CT., Mooradian, A. (eds) Lasers and Applications. Springer Series in Optical Sciences, vol 26. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-38609-4_12
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