宋建平
瞬变电磁测量法、信号分析与处理、近场作用显微分析技术、信息存储和光电材料研究、激光加工技术
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- 姓名:宋建平
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博士生导师
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学科领域:
半导体技术
- 研究兴趣:瞬变电磁测量法、信号分析与处理、近场作用显微分析技术、信息存储和光电材料研究、激光加工技术
宋建平,1946年5月生,1990年6月交通大学博士毕业。 研究方向:瞬变电磁测量法、信号分析与处理、近场作用显微分析技术、信息存储和光电材料研究、激光加工技术。从事过扫描隧道显微技术 (Scanning Tunneling Microscopy, 简称STM技术)的研究工作, 参加了两次863项目"STM纳米微细加工研究"。获得国家教委科技进步二等奖(STM显微技术研究,1997年).近年来致力于超快调制光谱学方面的研究工作,并获得教育部自然科学一等奖(飞秒及阿秒相位共轭极化拍研究,2005年)。
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【期刊论文】A development in the preparation of sharp scanning tunneling microscopy tips
宋建平, J. P. Songa), N. H. Pryds, K. Glejbtil, K. A. March, A. R. ThaIen, and L. N. Christensen
Rev. Sci. Instrum. 64 (4), April 1993,-0001,():
-1年11月30日
An improved and reliable method for making sharp scanning tunneling microscopy (STM) tips is described. It is based on the widely used drop-off electrochemical etching procedure, here modified to improve the control of the tip shape. A second etching is applied not only to remove the oxide layer from the tip surface, but also to sharpen the STM tips further. A tip radius less than 20 nm can be obtained reproducibly. The quality of the produced tips was inspected with transmission electron microscopy, and micrographs of tips produced with different times of second etching are shown. To produce tips which are all without an oxide layer an electronic phase control unit is necessary. Even without this etch controller more than half the tips are oxide free, and then only standard laboratory equipment is used for the tip production,
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宋建平, Yanpeng Zhang, , * Chenli Gan, Long Li, Ruiqiong Ma, Jianping Song, Tong Jiang, Xiaojun Yu, Chuangshe Li, Hao Ge, and Keqing Lu
PHYSICAL REVIEW A 72, 013812 (2005),-0001,():
-1年11月30日
Based on color-locking noisy field correlation, a time-delayed method is proposed to suppress the thermal effect, and the ultrafast longitudinal relaxation time can be measured even in an absorbing medium. One interesting feature in field-correlation effects is that Rayleigh-enhanced four-wave mixing (RFWM) with colorlocking noisy light exhibits spectral symmetry and temporal asymmetry with no coherence spike at γ=0. Due to the interference between the Rayleigh-resonant signal and the nonresonant background, RFWM exhibits hybrid radiation-matter detuning with terahertz damping oscillations. The subtle Markovian high-order correlation effects have been investigated in the homodyne- or heterodyne-detected Rayleigh-enhanced attosecond sum-frequency polarization beats (RASPBs). Analytic closed forms of fourth-order Markovian stochastic correlations are characterized for homodyne (quadratic) and heterodyne (linear) detection, respectively. Based on the polarization interference between two four-wave mixing processes, the phase-sensitive detection of RASPBs has also been used to obtain the real and imaginary parts of the Rayleigh resonance.
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