关键词: 飞秒激光/
分子高次谐波/
分子轨道/
层析成像
English Abstract
Molecular orbital imaging with high spatial and temperal resolutions
Zhu Xiao-Song1,Zhang Qing-Bin1,
Lan Peng-Fei1,
Lu Pei-Xiang1,2
1.School of Physics and Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China;
2.Laboratory of Optical Information Technology, Wuhan Institute of Technology, Wuhan 430205, China
Fund Project:Project supported by the National Natural Science Foundation of China (Grant Nos. 11404123, 11234004, 61275126, 11422435, 11574101).Received Date:18 September 2016
Accepted Date:21 October 2016
Published Online:05 November 2016
Abstract:When atoms and molecules are excited by ultrashort laser pulses, highly nonlinear strong-field processes like above-threshold ionization and high harmonic generation occur. By analyzing the emitted light and electron signals, the atomic and molecular structures and ultrafast dynamics can be detected with a combination of Angstrom spatial resolution and sub-femtosecond temporal resolution, which provides a powerful tool to study the basic structures and physical processes in the microscopic world. The molecular orbital tomography (MOT) developed since 2004 enables one to image the wavefunction of the molecular orbital itself, which will help people gain deeper insight into the chemical reactions. In this paper, the theory of MOT will be introduced, and the progresses of MOT in the past ten years will be reviewed.
Keywords: femtosecond laser/
molecular high harmonic generation/
molecular orbital/
tomographic imaging
