An experimental study of atomic vapor cell fabrication for atomic clock

Miniaturized atomic clock could provide the most stable frequency reference. Atomic Vapor Cell is the most important component for atomic clock. A method based on vacuum packaging to conduct the glass-silicon-glass anodic bonding using two electrodes for atomic vapor cell fabrication was developed. Based on the method of laser drilling and surface analysis, a novel process for atomic vapor cell fabrication with cavity by laser drilling was proposed. Tensile strength test shows that the samples could obtain 9 MPa ~ 10 MPa. The spectrum analysis demonstrated the alkali metal was well sealed.