Influence of the amplitude ratio between two terahertz pulses on two-dimensional spectroscopy

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• 作者：Jiangsheng Hu (1)
  Jinsong Liu (1)
  Huquan Li (1)
  Kejia Wang (1)
  Zhengang Yang (1)
  Shenglie Wang (1)
  
• 关键词：Two ; dimensional spectroscopy ; Terahertz spectroscopy ; Amplitude ratio ; Classical method ; Perturbative method
• 刊名：Chinese Science Bulletin
• 出版年：2014
• 出版时间：January 2014
• 年：2014
• 卷：59
• 期：2
• 页码：138-146
• 全文大小：1,183 KB
• 作者单位：Jiangsheng Hu (1)
  Jinsong Liu (1)
  Huquan Li (1)
  Kejia Wang (1)
  Zhengang Yang (1)
  Shenglie Wang (1)
  
  1. Wuhan National Laboratory for Optoelectronics, School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, 430074, China
  
• ISSN：1861-9541

文摘

The influence of the amplitude ratio between the two THz pulses on two-dimension THz spectroscopy (2DTS) has been studied theoretically via a classical method in which the expressions for the second-order nonlinearity were derived using perturbation approach, and the THz pulses were not treated as a delta function. Three types of nonlinear sources i.e., anharmonicity, nonlinear damping, and nonlinear coupling, are considered in a single mode system. The simulation results demonstrated that the amplitude ratio had a notable influence on the 2DTSs, and different sources have different influences. This study is promising for guiding future experiments.