Laser induced photoemission electron and the generation of high Rydberg states of atoms and molecules  

作　　者：Li Wang Haiyang Li Jiling Bai Richang Lu 

机构地区：[1]Acad Sinica, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China

出　　处：《Chinese Science Bulletin》1998年第19期1616-1620,共5页

基　　金：ThisworkwassupportedbytheNationalNaturalScienceFoundationofChina (GrantNo .2 935 30 0 2 )

摘　　要：Laser induced photoemission electron was produced by directing 532 nm and/or 355 nm onto stainless steel plate on a time of flight mass spectrometer. Multiple charged ions and high Rydberg states of atoms or molecules were successfully generated by impacts of the photoemission electrons. The high Rydberg states ( n ～40-100) thus produced were separated from ions, produced by direct electron impact ionization, by a 3 V DC electric field and then ionized by a delayed pulsed HV electric field in a ZEKE-PFI manner. Relationship between generation/property of high Rydberg states of atoms/molecules and experimental conditions could be investigated. Relationship between the electron accelerating voltage and high Rydberg states of Ar was described.Laser induced photoemission electron was produced by directing 532 nm and/or 355 nm onto stainless steel plate on a time of flight mass spectrometer. Multiple charged ions and high Rydberg states of atoms or molecules were successfully generated by impacts of the photoemission electrons. The high Rydberg states (n ～ 40–100) thus produced were separated from ions, produced by direct electron impact ionization, by a 3 V DC electric field and then ionized by a delayed pulsed HV electric field in a ZEKE-PFI manner. Relationship between generation/property of high Rydberg states of atoms/molecules and experimental conditions could be investigated. Relationship between the electron accelerating voltage and high Rydberg states of Ar was described.

关 键 词：PHOTOEMISSION ELECTRON multiple CHARGED ions high RYDBERG states. 

分 类 号：O482.7[理学—固体物理]