PHOTOIONIZATION

作品数:149被引量:87H指数:4
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相关领域:理学更多>>
相关作者:齐飞盛六四陈军张李东单晓斌更多>>
相关机构:中国科学技术大学中国科学院河北工业大学河北师范大学更多>>
相关期刊:《High Power Laser Science and Engineering》《Chemical Research in Chinese Universities》《Chinese Physics Letters》《Communications in Computational Physics》更多>>
相关基金:国家自然科学基金国家重点基础研究发展计划国家教育部博士点基金中国博士后科学基金更多>>
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A dopant-assisted iodide-adduct chemical ionization time-of-flight mass spectrometer based on VUV lamp photoionization for atmospheric low-molecular-weight organic acids analysis
《Journal of Environmental Sciences》2025年第3期500-511,共12页Yonglei Zhang Ruidong Liu Mei Li Yingzhe Guo Jichuang Kong Keyong Hou 
supported by the National Special Fund for the Development of Major Research Equipment and Instrument(No.2020YFF01014503);the Young Taishan Scholars(No.tsqn201909039);the College 20 Project fromJi Nan Science&Technology Bureau(No.2021GXRC058).
Formic and acetic acids are the most abundant gaseous organic acids and play the key role in the atmospheric chemistry.In iodine-adduct chemical ionizationmass spectrometry(CIMS),the low utilization efficiency of meth...
关键词:Formic acid Acetic acid Vacuum ultraviolet(VUV)lamp photoionization(PI) Chemical ionization(CI) Time-of-flight mass spectrometry (TOFMS) Trace gases measurement 
Self-consistent extraction of photoabsorption time delays in attosecond streak camera
《Science China(Physics,Mechanics & Astronomy)》2024年第12期8-16,共9页Yutong Gao Hongcheng Ni Andreas Becker Jian Wu 
supported by the National Natural Science Foundation of China (Grant Nos.92150105,12227807,and 12241407);the Science and Technology Commission of Shanghai Municipality (Grant Nos.21ZR1420100,and 23JC1402000);support by a grant from the U.S.Department of Energy,Division of Chemical Sciences,Atomic,Molecular and Optical Sciences Program (Grant No.DESC0001771)。
Photoionization can generally be decomposed into a photoabsorption process plus a half-scattering process.The streaking time delay observed in the attosecond streak camera,correspondingly,can be decomposed into a phot...
关键词:attosecond streak camera photoabsorption time delay PHOTOIONIZATION 
Photoelectron momentum distributions of triatomic CO_(2)molecules by circularly polarized attosecond pulses
《Chinese Physics B》2024年第10期220-225,共6页Si-Qi Zhang Jun Zhang Xin-Yu Hao Jing Guo Aihua Liu Xue-Shen Liu 
supported by the National Natural Science Foundation of China(Grant Nos.11974007,12074146,12074142,61575077,12374265,11947243,91850114,and 11774131);the Natural Science Foundation of Jilin Province of China(Grant No.20220101016JC).
Molecular-frame photoelectron momentum distributions(MF-PMDs)have been studied for imaging molecular structures.We investigate the MF-PMDs of CO_(2)molecules exposed to circularly polarized(CP)attosecond laser pulses ...
关键词:molecular-frame photoelectron momentum distributions single-active-electron approximation frames ultrafast photoionization models 
Optical free induction decay emission carrying orbit angular momentum from ionic nitrogen enabled by multiple-photon resonance
《Chinese Optics Letters》2024年第6期177-181,共5页Kailu Wang Haicheng Mei Jingsong Gao Liang Xu Hongbing Jiang Yi Liu 
supported in part by the National Natural Science Foundation of China (Nos.12034013 and 12204308);the Shanghai Science and Technology Commission (No.22ZR1444100)。
Coherent optical emission of free induction decay (FID) excited by the multiple-photon resonance has been recently observed in nitrogen ions produced by intense femtosecond laser pulses.Here we report that orbit angul...
关键词:air lasing orbital angular momentum free induction decay femtosecond pulses PHOTOIONIZATION 
Theoretical investigations of population trapping phenomena in atomic four-color,three-step photoionization scheme
《Chinese Physics B》2024年第3期333-340,共8页卢肖勇 孙亚鹏 
The four-color three-step selective photoionization process of atom is very important in laser isotope separation technology.The population trapping phenomena and their influences are studied theoretically in monochro...
关键词:population trapping metastable state selective photoionization laser bandwidth 
Electron vortex generations in photoionization of hydrogen atoms by circularly-polarized chirped attosecond pulses
《Communications in Theoretical Physics》2024年第1期111-118,共8页Bingshuang Zhang Xiaoyu Liu Fengzheng Zhu Liguang Jiao Aihua Liu 
supported by the National Key Research and Development Program of China(Grant No.2022YFE0134200);the National Natural Science Foundation of China(Grant Nos.12174147,91850114,11774131);the Natural Science Foundation of Jilin Province,China(Grant No.20220101016JC);the Open Research Fund of State Key Laboratory of Transient Optics and Photonics。
By numerically solving the time-dependent Schr?dinger equation and employing the analytical perturbative model,we investigated the chirp-induced electron vortex in the photoionization of hydrogen atoms by a pair of co...
关键词:PHOTOIONIZATION ultrafast processes ultrafast dynamics electron vortex 
Attosecond ionization time delays in strong-field physics
《Chinese Physics B》2024年第1期102-121,共20页马永哲 倪宏程 吴健 
Project supported by the National Natural Science Foundation of China (Grant Nos.92150105,11834004,12227807,and 12241407);the Science and Technology Commission of Shanghai Municipality (Grant No.21ZR1420100)。
Electronic processes within atoms and molecules reside on the timescale of attoseconds. Recent advances in the laserbased pump-probe interrogation techniques have made possible the temporal resolution of ultrafast ele...
关键词:strong-field ionization ATTOSECOND time delay photoionization time delay tunneling time delay attosecond streak camera reconstruction of attosecond beating by interference of two-photon transitions(RABBITT) attoclock backpropagation 
Breath-by-breath measurement of exhaled ammonia by acetonemodifier positive photoionization ion mobility spectrometry via online dilution and purging sampling
《Journal of Pharmaceutical Analysis》2023年第4期412-420,共9页Lu Wang Dandan Jiang Lei Hua Chuang Chen Dongming Li Weiguo Wang Yiqian Xu Qimu Yang Haiyang Li Song Leng 
This work was supported by the National Natural Science Foundation of China(Grant Nos.:22027804,21974141,and 21904125);Natural Science Foundation of Liaoning Province(Grant Nos.:2022-MS-019 and 2022-MS-016);Science and Technology Innovation Foundation of Dalian(Grant No.:2022JJ13SN096);Dalian Institute of Chemical Physics(Grant Nos.:DICP I202141 and DICP I202144);1+X Program for Large Cohort Study-Clinical Research Incubation Project,The Second Hospital of Dalian Medical University(Project No.:2022DXDL01).
Exhaled ammonia(NH_(3))is an essential noninvasive biomarker for disease diagnosis.In this study,an acetone-modifier positive photoionization ion mobility spectrometry(AM-PIMS)method was developed for accurate qualita...
关键词:Photoionization ion mobility spectrometry Acetone modifier Exhaled ammonia Breath analysis 
Numerical studies of isotopic selective photoionization of ytterbium in a three-step ionization scheme
《Chinese Physics B》2023年第5期395-404,共10页卢肖勇 王立德 
Selective photoionization of ytterbium isotope is studied numerically based on a three-step photoionization scheme,4f^(14)6s^(21)S_0(0 cm^(-1))→4f~(14)6s6p~3P_1(17992.008 cm^(-1))→(4f~(13)6s~26p)(7/2,3/2)_2(35196.98...
关键词:ytterbium isotope hyperfine structure selective photoionization 
TEC Variability during Fluctuating Events at Koudougou Station during Solar Cycle 24
《International Journal of Geosciences》2022年第10期936-950,共15页Tinlé Pahima Doua Allain Gnabahou Sibri Alphonse Sandwidi Frédéric Ouattara 
This paper deals with TEC variability during fluctuating geomagnetic events (FE) during solar cycle 24 at Koudougou station (lat: 12o15'N;Geo long: -2o20'E). The study was done by comparing TEC v...
关键词:Total Electronic Content Fluctuating Events Solar Cycles PHOTOIONIZATION Recombination Positive Storms Negative Storms 
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