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Investigation on electromagnetically induced transparency and slowdown of group velocity in an Eu3+:Y2SiO5 crystal |
Qingchang LIANG1, Haihua WANG2, Zhankui JIANG1,2( ) |
| 1. Institute of Science and Technology for Opto-Electronic Information; 2. College of Physics, Jilin University |
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Abstract Electromagnetically induced transparency (EIT) and slowdown of group velocity (SGV) in Eu3+:Y2SiO5 were investigated by using density matrix equations of the interaction between light and matter and their numerical solutions. The relationship of the probe transmission with different probe detuning and coupling Rabi frequency was obtained. The influence of inhomogeneous line width on electromagnetically induced transparency and slowdown of group velocity were analyzed. Such transparency was restrained when inhomogeneous line width increased. The center transmission did not homogeneously change with an increase in ion-doped concentration. There is an optimal concentration which can make the electromagnetically induced transparency significant. It is evident that the group velocity of the probe has a minimum value for a certain level of coupling field strength.
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| Keywords
quantum optics
quantum coherence effect
electromagnetically induced transparency (EIT)
slowdown of group velocity (SGV)
density matrix equation
Eu3+:Y2SiO5
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Corresponding Author(s):
JIANG Zhankui,Email:jzk@mail.jlu.edu.cn
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Issue Date: 05 September 2009
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