Second Harmonic Generation Signal Analysis And Irradiation Study Of Nonlinear Optical Matters

Observing the composition and structure of the matters at different scales and more dimensions,as well as linkage the structure with the properties of the materials and the alteration that occurs under different external conditions and the reasons as well as the mechanisms of the change are the consistent goals and permanent pursue of our researchers.Towards different matters or materials in special fields,we should take appropriate means and techniques to fully acquire,observe and analyze the corresponding information.In this article,we mainly use two methods as the fundamental way or technology to study the matters:1.Simulating the morphological changes of phospholipid molecules in cell life activities,which are the important components of cell membrane in the biology field,we use a simplified monolayer model,and a non-invasive and surface sensitive technique second harmonic generation(SHG)to get the liquid surface structure and kinetic characteristics of phospholipid molecules under different conditions,through analyzing the information of nonlinear optical signals and surface pressure on the liquid surface,that provided the criteria for the various changes of the cell membrane structure at the molecular scale in real environment.Since the phospholipid molecular layer is the mainly skeleton that makes up cell membrane,it is extremely important to study the morphological alteration and structural features of the phospholipid molecules under different conditions for the in-depth understanding of the cell membrane entry and exit.2.Argon ion beam irradiation method is used to improve the crystallization capacity of BaO-TiO2-SiO2(BTS)basic glass and its surface quality.We attempt to control the piezoelectricity,hardness and other properties of BTS glass ceramic by controlling the crystallization of the basic glass.BTS crystal has many excellent properties and capacity,such as non-linear optical effect,piezoelectric effect and so on,which has such wide application in real life.There has been a lot of basic research on the crystal or the glass system,but very few studies have been done about the energy study of this system.In this paper,BTS basic glass,under argon ion beam irradiation conditions,we use the electron microscopy analysis,spectral analysis and other methods to explore the material microscopic information,and to analyze material structure and performance changes and even to discuss the possible innovation and improvement of glass ceramic in these processes.