new coating of rare earth doped materials research

Title: new coating of rare earth doped materials research
　　Author: Chen Qingyou
　　Degree-granting unit: Changchun University of Technology
　　Keywords: MgF_2;; YF_3;; vacuum coating;; membrane stress;; single layer antireflection coating
　　Summary:
　　Magnesium fluoride (MgF2) as a traditional coating materials, the optical field in the film has a very important position and role. Magnesium Strong magnets fluoride films are all low-refractive index material in the most solid film with good optical and mechanical properties.
　　In this paper, in MgF2 doped YF3 (CaF2) materials for the optical and mechanical properties of the study. K9 glass by the antireflection layer coated on the membrane, and its transmission, laser interference fringes, adhesion and abrasion resistance was tested in MgF22 obtained in 5% -10% of the doping YF3 materials can effectively improve the magnesium fluoride film tensile stress, but also for the film transmittance in the visible region also increased. While maintaining good mechanical properties of thin films. In 5% MgF2 CaF2 doped material has also been good results. Experiments show that YF3 (CaF2) can be mixed with MgF2 coating in the formation of new materials.
　　Stress test for the film is coated http://www.chinamagnets.biz/ Qianhou substrate by measuring the change of laser interference fringes to achieve. This change in film stress measurement, is a more convenient way.
　　Today a new coating material for the study more, but the modification of traditional coating materials less. In this paper, MgF2 doped YF3 (CaF2) material is the traditional coating material modification made a good attempt, but also the study of new coating materials made a good attempt.
　　Degree Year: 2010