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Search Results: 1 - 10 of 75620 matches for " Zhao Yan-Ting "
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Influence of Fe Contamination on the Minority Carrier Lifetime of Multi-crystalline Silicon
MENG Xia-Jie,MA Zhong-Quan,LI Feng,SHEN Cheng,YIN Yan-Ting,ZHAO Lei,LI Yong-Hua,XU Fei,
中国物理快报 , 2010,
Abstract:
Experimental investigation of electromagnetically induced transparency with double-pumping lasers
双抽运光作用电磁感应透明的实验研究
Zhao Jian-Ming,Zhao Yan-Ting,Huang Tao,Xiao Lian-Tuan,Jia Suo-Tang,
赵建明,赵延霆,黄涛,肖连团,贾锁堂
物理学报 , 2004,
Abstract: The effect of pumping laser intensity on electromagnetically induced transparency (EIT) in the cesium atomic three-level system was investigated, and the EIT against double-pumping laser was obtained. The theoretical explanation was put forward using density matrix, and the experimental results is in agreement with theoretical calculation.
Effect of external magnetic field on the coherence properties of degenerated two-level atomic system
外加磁场对简并二能级原子系统相干特性的影响
Zhao Jian-Ming,Wang Li-Rong,Zhao Yan-Ting,Ma Jie,Xiao Lian-Tuan,Jia Suo-Tang,
赵建明,汪丽蓉,赵延霆,马 杰,肖连团,贾锁堂
物理学报 , 2005,
Abstract: 在铯原子简并二能级系统中6S1/2F=4—6P3/2 F'=5 的循环跃迁上获得了电磁感应吸收(EIA)峰，并研究了轴向均匀磁场对二能级系统相干效应的影响，即存在轴向均匀磁场时，观测到在铯原子6S1/2F=4—6P3/2F'=5 跃迁频率处EIA和电磁诱导透明(EIT)的混合结构，在合适的实验条件下，其结果与Ye等(2002)的理论分析相一致.
Observation of EIA in closed and open caesium atomic system
封闭和开放铯原子系统中的EIA效应
Zhao Jian-Ming,Zhao Yan-Ting,Huang Tao,Xiao Lian-Tuan,Jia Suo-Tang,
赵建明,赵延霆,黄　涛,肖连团,贾锁堂
中国物理 B , 2005,
Abstract: We present an experimental study on electromagnetically induced absorption (EIA) in the closed transition of a degenerate two-level Cs atomic system.The coupling and probe lasers coupled with the transition 6S1/2 F=4 to 6P3/2F'=5 of caesium atom. The signal of EIA was obtained and the frequency detuning and intensity effect of the pumping laser were experimentally investigated. The EIA signal in 6S1/2 F =4 to 6P3/2F'=4 and 6S1/2 F =4 to 6P3/2F'=3 open transitions was also obtained. As the repumping laser couples with the transition of 6S1/2 F =3 to 6P3/2F'=4, the EIA signal is increased due to the hyperfine optical pumping.
Experimental investigation of slow light propagation in degenerate two-level system
Wang Li-Rong,Zhao Yan-Ting,Ma Jie,Zhao Jian-Ming,Xiao Lian-Tuan,Jia Suo-Tang,
汪丽蓉,赵延霆,马杰,赵建明,肖连团,贾锁堂
中国物理 B , 2006,
Abstract: Slowing a light pulse in a degenerate two-level system is observed with a double-frequency sweeping technique. The effects of coupling beam intensity, cell temperature and frequency detunings of the coupling and probe beams in resonance, on the slowing of light propagation in such a system are investigated. It is found that group velocities depend strongly on polarization combinations. A group velocity $v_{\rm g}$=6760m/s of light pulses in caesium vapour is obtained under the optimal parameters.
Transmission spectroscopy in a thin vapour layer and its derivative properties
Zhao Yan-Ting,Zhao Jian-Ming,Xiao Lian-Tuan,Jia Suo-Tang,
赵延霆,赵建明,肖连团,贾锁堂
中国物理 B , 2003,
Abstract: A novel method of high-resolution spectroscopy of gases is proposed. The method is based on observing the optical behaviour of thin vapour layer when the particles cross the light beam or collide with the cell walls. The atomic motion and electronic quenching on gas-solid interfaces are explored by numerical analysis. The periodicity of peak values of transmission spectra and its derivative spectra demonstrates a sub-Doppler structure corresponding to the resonant transitions.
Experimental investigation of the sub-Doppler transmission spectroscopy in a thin vapour layer at room temperature
Experimental　investigation　of　the　sub-Doppler　transmission　spectroscopy　in　a　thin　vapour　layer　at　room　temperature
Zhao Yan-Ting,Zhao Jian-Ming,Huang Tao,Xiao Lian-Tuan,Jia Suo-Tang,
赵延霆,赵建明,黄涛,肖连团,贾锁堂
中国物理 B , 2004,
Abstract: The sub-Doppler transmission spectrum in a thin vapour layer (about 150 μm) was observed at room temperature using the wavelength modulation technology. The absorption signal and its second-order harmonic were detected with an external-cavity diode laser. A sub-Doppler spectrum corresponding to resonant transitions of the caesium D_2 line (6S_{1/2}→6P_{3/2}) was demonstrated. The dependence of the transmission signal on the intensity of the laser was also investigated.
Optical Dispersion Behavior and Band Gap Energy of Relaxor Ferroelectric 0.92Pb(Mg1/3Nb2/3)O3-0.08PbTiO3 Single Crystal
LIN Yan-Ting,REN Bo,ZHAO Xiang-Yong,WANG Fei-Fei,WANG Yao-Jin,XU Hai-Qing,LIN Di,LUO Hao-Su,
中国物理快报 , 2009,
Abstract: Refractive indices and extinction coefficients of 0.92Pb(Mg1/3Nb2/3)O3-0.08PbTiO3(PMN-0.08PT) single crystal are investigated by variable angle spectroscopic ellipsometry (VASE) at different wavelengths. The parameters relative to the energy band structure are obtained by fitting to the single-oscillator dispersion equation, and the band gap energy is also deduced from the Tauc equation. Similar to most oxygen-octahedra ferroelectrics, PMN-0.08PT has the same dispersion behavior described by the refractive-index dispersion parameters.
Photoassociative Production and Detection of Ultracold Polar RbCs Molecules
JI Zhong-Hua,ZHANG Hong-Shan,WU Ji-Zhou,YUAN Jin-Peng,ZHAO Yan-Ting,MA Jie,WANG Li-Rong,XIAO Lian-Tuan,JIA Suo-Tang,
中国物理快报 , 2011,
Abstract:
Cold cesium molecules produced directly in a magneto-optical trap
Zhang Hong-Shan,Ji Zhong-Hu,Yuan Jin-Peng,Zhao Yan-Ting,Ma Jie,Wang Li-Rong,Xiao Lian-Tuan,Jia Suo-Tang,
中国物理 B , 2011,
Abstract: We report on the observation of ultracold ground electric-state cesium molecules produced directly in a magneto- optical trap with a good signal-to-noise ratio. These molecules arise from the photoassociation of magneto-optical trap lasers and they are detected by resonantly enhanced multiphoton ionization technology. The production rate of ultracold cesium molecules is up to 4×104 s-1. We measure the characteristic time of the ground electric-state cesium molecules generated in the experiment and investigate the Cs2+ molecular ion intensity as a function of the trapping laser intensity and the ionization pulse laser energy. We conclude that the production of cold cesium molecules may be enhanced by using appropriate experimental parameters, which is useful for future experiments involving the production and trapping of ultracold ground electric-state molecules.
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