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Electromagnetically induced transparency in a solid study group slowed

Author: LiangQingChang
Tutor: JiangZhanKui
School: Yantai University
Course: Optics
Keywords: Quantum coherence effects Density matrix equation Electromagnetically induced transparency Group slowed Pr3: Y2SiO5 Eu3: Y2SiO5
CLC: O482
Type: Master's thesis
Year: 2007
Downloads: 95
Quote: 0
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Abstract


Electromagnetically induced transparency (EIT) is coupled by a strong coherent field , originally weak probe field absorption induced transparency medium . The phenomenon of electromagnetically induced transparency due to the slower group velocity (SGV), the optical signal storage great potential for applications in quantum information processing , has important significance to the development of quantum information and quantum computing . The support of the National Natural Science Foundation of China (NO: 10074020) , the paper Pr3: Y2SiO5 of Eu3 : Y2SiO5 crystal electromagnetic induction light transparent and group velocity slow down the theoretical and experimental research . This paper details the semi - classical theory of the interaction of light and matter , and the interaction of light and matter density matrix equation is derived , obtained an approximate solution of the equations . Discussed for the specific case of the two crystals , in the model of the three - level Λ electromagnetically induced transparency phenomenon and the optical group velocity slows down. The laser linewidth , the spin sublevels inhomogeneous linewidth and ion doping concentration parameters electromagnetically induced transparency , draw some important conclusions . The basis of the three-level Λ model with an RF field , RF field manipulation of electromagnetically induced transparency and light group velocity slows , multi-window electromagnetic induction light transparent with the group slowed . Experimental aspects of the specific design of the experiment , the study electromagnetically induced transparency necessary for two important parameters - a uniform line width and non-uniform line width was measured . Experimental parameters are substituted into the theoretical formula to calculate the Pr3: Y2SiO5 EIT and SGV and compared with experimental results , in line with theoretical calculations and experimental results . Compared with the gas material , solid material made ??of easy- devices, more practical applications of quantum information and quantum computing .

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