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Theory and experiment of coherent wave packet dynamics in rare earth solids: Absorption spectrum vs femtosecond fringe-resolved interferogram

Luo, Q.; Dai, D.C.; Wang, G.Q.; Ninulescu, V.; Yu, X.Y.; Luo, L.; Zhou, J.Y.; Yan, Y.J.

Authors

Q. Luo

D.C. Dai

G.Q. Wang

V. Ninulescu

X.Y. Yu

L. Luo

J.Y. Zhou

Y.J. Yan



Abstract

Coherent dynamic property of neodymium yttrium aluminum garnet (Nd:YAG) crystal at 77 K is studied via the conventional absorption, the femtosecond fringe-resolved wave packet interferometry, and the related difference-phase spectrum. The recorded interferogram exhibits beatings in subpicosecond time scale arising from the interferences among various weakly split 4f-electronic states and the coupled vibronic optical phonon sidebands. The electron–phonon coupling in Nd:YAG can be well described by multiple Brownian oscillators model involving in each individual electronic transition. The parameters for characterizing material coherence and relaxation are determined via the theoretical modelings of both the frequency and the time-domain experimental signals.

Citation

Luo, Q., Dai, D., Wang, G., Ninulescu, V., Yu, X., Luo, L., …Yan, Y. (2001). Theory and experiment of coherent wave packet dynamics in rare earth solids: Absorption spectrum vs femtosecond fringe-resolved interferogram. The Journal of Chemical Physics, 114(4), 1870-1875. https://doi.org/10.1063/1.1335659

Journal Article Type Article
Publication Date Jan 1, 2001
Deposit Date Sep 29, 2010
Journal Journal of Chemical Physics
Print ISSN 0021-9606
Electronic ISSN 1089-7690
Publisher American Institute of Physics
Peer Reviewed Peer Reviewed
Volume 114
Issue 4
Pages 1870-1875
DOI https://doi.org/10.1063/1.1335659

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