Femtosecond intense laser provides an important means for detecting the microstructure and electron fast kinetics of matter at the time-space scale of atoms (A second time and the space scale of Aene). Recently, our country experts made important progress in using the femtosecond laser to probe the atomic molecular structure and the electron fast kinetics.
Femtosecond intense laser-induced ionization of electron-wave packets or can return to the parent ion and then with the occurrence of re-scattering process, caused by re-scattering of high-order harmonic spectra or photoelectron spectroscopy for the detection of atomic molecular structure and rapid evolution of electronic states provide Effective Ways. At present, the development of high-resolution spatiotemporal molecular structure and kinetic detection methods for the research field of widespread concern.
Liu Xiaojun, a researcher at Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, researched by Quan Wei and others, together with Chen Jing, a researcher at Beijing Institute of Applied Physics and Computational Mathematics and associate researcher Wu Yong, proposed a new laser-induced inelastic electron diffraction scheme and adopted This scheme experimentally determined the inelastic scattering differential cross section caused by the electron-inert gas ion collisions.
According to reports, in this program, experts use the femtosecond laser-driven atom-generated re-scatter electron wave packet instead of the traditional electron beam, electron inertial ion precursor ion structure detection. Combined with high-resolution electron-ion-momentum spectrometer devices and coincidence measuring methods, which were built in the early stage of Wuhan material number, they experimentally measured the photoelectron two-dimensional momentum spectra corresponding to ionization-ion collisional ionization process and extracted the action of electrons and parent ions The results of the experiment are in good agreement with the Bonn approximation theory of twisted wave.
This scheme inherits the advantages of ultrahigh spatial resolution of traditional electron diffraction methods and possesses ultrahigh temporal resolution ability. It provides an important means for studying the laser-induced ultra-fast kinetic process of atomic molecules on the femtosecond and even second-order time scales.
Shrink Sleeve Label For Protein Powder Bottle
Shrink Wrap Label for Protein Shaker Bottle, Whey Protein Powder Large Shrink Sleeves, Protein Powder Water Bottle Shrink Sleeve Wrap Label, Nutrition Barrels Bottle Shrink Wraps, Protein Milk Bottle Shrink Sleeve Label
Shenzhen Lehua Packaging Materials Co., Ltd , https://www.zjlehuapackaging.com