Photodetachment microscopy of H^- in the magnetic field near different dielectric surfaces  

作　　者：唐田田 张敏 张朝民 

机构地区：[1]Department of Mathematical Physics Education,Yantai Nanshan University

出　　处：《Chinese Physics B》2015年第6期288-295,共8页中国物理B（英文版）

基　　金：Project supported by the Natural Science Foundation for Youths of Shandong Province,China(Grant No.ZR2014AQ022)

摘　　要：We study the photo-detachment interference patterns of a hydrogen negative ion in the magnetic field near different dielectric surfaces with a semi-classical open orbit theory. We give a clear physical picture describing the photo-detachment of H- in this case. The electron flux distributions are calculated at various dielectric surfaces with unchanged magnetic field strength. It is found that the electron flux distributions of H- are very different in a magnetic field near different dielectric surfaces, namely the dielectric surface has a great influence on the photo-detachment interference pattern of the negative ion. Therefore, the interference pattern in the detached-electron flux distribution can be controlled by changing the dielectric constant. We hope that our studies may guide the future experimental research in photo-detachment microscopy.We study the photo-detachment interference patterns of a hydrogen negative ion in the magnetic field near different dielectric surfaces with a semi-classical open orbit theory. We give a clear physical picture describing the photo-detachment of H- in this case. The electron flux distributions are calculated at various dielectric surfaces with unchanged magnetic field strength. It is found that the electron flux distributions of H- are very different in a magnetic field near different dielectric surfaces, namely the dielectric surface has a great influence on the photo-detachment interference pattern of the negative ion. Therefore, the interference pattern in the detached-electron flux distribution can be controlled by changing the dielectric constant. We hope that our studies may guide the future experimental research in photo-detachment microscopy.

关 键 词：photo-detachment semi-classical open orbit theory interference pattern dielectric surface 

分 类 号：O562[理学—原子与分子物理]